Home / 90,071.57-135,107.36-23,511.12

Finding the Fourth Proportional to 90,071.57, 135,107.36 and 23,511.12

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Solution

The fourth proportional to 90,071.57, 135,107.36 and 23,511.12 is: 35,266.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,071.57 : 135,107.36 = 23,511.12 : x
  2. Step 2: Convert to fraction form
    90,071.57/135,107.36 = 23,511.12/x
  3. Step 3: Cross multiply
    90,071.57x = 135,107.36 × 23,511.12
  4. Step 4: Simplify right side
    90,071.57x = 3,176,525,236.29
  5. Step 5: Solve for x
    x = 3,176,525,236.29/90,071.57
  6. Step 6: Final answer
    x = 35,266.68

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.