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Finding the Fourth Proportional to 63,988.38, 88,310.82 and 35,703.90

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Solution

The fourth proportional to 63,988.38, 88,310.82 and 35,703.90 is: 49,275.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,988.38 : 88,310.82 = 35,703.90 : x
  2. Step 2: Convert to fraction form
    63,988.38/88,310.82 = 35,703.90/x
  3. Step 3: Cross multiply
    63,988.38x = 88,310.82 × 35,703.90
  4. Step 4: Simplify right side
    63,988.38x = 3,153,040,686.20
  5. Step 5: Solve for x
    x = 3,153,040,686.20/63,988.38
  6. Step 6: Final answer
    x = 49,275.21

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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.