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Finding the Fourth Proportional to 57,489.53, 86,218.56 and 36,397.80

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Solution

The fourth proportional to 57,489.53, 86,218.56 and 36,397.80 is: 54,586.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,489.53 : 86,218.56 = 36,397.80 : x
  2. Step 2: Convert to fraction form
    57,489.53/86,218.56 = 36,397.80/x
  3. Step 3: Cross multiply
    57,489.53x = 86,218.56 × 36,397.80
  4. Step 4: Simplify right side
    57,489.53x = 3,138,165,903.17
  5. Step 5: Solve for x
    x = 3,138,165,903.17/57,489.53
  6. Step 6: Final answer
    x = 54,586.74

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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.