Home / 90,221.56-135,329.10-23,661.16

Finding the Fourth Proportional to 90,221.56, 135,329.10 and 23,661.16

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Solution

The fourth proportional to 90,221.56, 135,329.10 and 23,661.16 is: 35,490.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,221.56 : 135,329.10 = 23,661.16 : x
  2. Step 2: Convert to fraction form
    90,221.56/135,329.10 = 23,661.16/x
  3. Step 3: Cross multiply
    90,221.56x = 135,329.10 × 23,661.16
  4. Step 4: Simplify right side
    90,221.56x = 3,202,043,487.76
  5. Step 5: Solve for x
    x = 3,202,043,487.76/90,221.56
  6. Step 6: Final answer
    x = 35,490.89

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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.