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Finding the Fourth Proportional to 63,404.31, 87,492 and 37,905.60

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Solution

The fourth proportional to 63,404.31, 87,492 and 37,905.60 is: 52,306.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,404.31 : 87,492 = 37,905.60 : x
  2. Step 2: Convert to fraction form
    63,404.31/87,492 = 37,905.60/x
  3. Step 3: Cross multiply
    63,404.31x = 87,492 × 37,905.60
  4. Step 4: Simplify right side
    63,404.31x = 3,316,436,755.20
  5. Step 5: Solve for x
    x = 3,316,436,755.20/63,404.31
  6. Step 6: Final answer
    x = 52,306.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.