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Finding the Fourth Proportional to 63,154.70, 87,151.28 and 37,647.90

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Solution

The fourth proportional to 63,154.70, 87,151.28 and 37,647.90 is: 51,952.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,154.70 : 87,151.28 = 37,647.90 : x
  2. Step 2: Convert to fraction form
    63,154.70/87,151.28 = 37,647.90/x
  3. Step 3: Cross multiply
    63,154.70x = 87,151.28 × 37,647.90
  4. Step 4: Simplify right side
    63,154.70x = 3,281,062,486.07
  5. Step 5: Solve for x
    x = 3,281,062,486.07/63,154.70
  6. Step 6: Final answer
    x = 51,952.79

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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.