Home / 91,025.64-136,538.46-28,701

Finding the Fourth Proportional to 91,025.64, 136,538.46 and 28,701

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Solution

The fourth proportional to 91,025.64, 136,538.46 and 28,701 is: 43,051.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,025.64 : 136,538.46 = 28,701 : x
  2. Step 2: Convert to fraction form
    91,025.64/136,538.46 = 28,701/x
  3. Step 3: Cross multiply
    91,025.64x = 136,538.46 × 28,701
  4. Step 4: Simplify right side
    91,025.64x = 3,918,790,340.46
  5. Step 5: Solve for x
    x = 3,918,790,340.46/91,025.64
  6. Step 6: Final answer
    x = 43,051.50

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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.