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Finding the Fourth Proportional to 63,930.66, 88,262.11 and 56,837.45

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Solution

The fourth proportional to 63,930.66, 88,262.11 and 56,837.45 is: 78,469.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,930.66 : 88,262.11 = 56,837.45 : x
  2. Step 2: Convert to fraction form
    63,930.66/88,262.11 = 56,837.45/x
  3. Step 3: Cross multiply
    63,930.66x = 88,262.11 × 56,837.45
  4. Step 4: Simplify right side
    63,930.66x = 5,016,593,264.02
  5. Step 5: Solve for x
    x = 5,016,593,264.02/63,930.66
  6. Step 6: Final answer
    x = 78,469.29

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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.