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Finding the Fourth Proportional to 89,750.78, 123,897.01 and 63,925.96

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Solution

The fourth proportional to 89,750.78, 123,897.01 and 63,925.96 is: 88,246.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,750.78 : 123,897.01 = 63,925.96 : x
  2. Step 2: Convert to fraction form
    89,750.78/123,897.01 = 63,925.96/x
  3. Step 3: Cross multiply
    89,750.78x = 123,897.01 × 63,925.96
  4. Step 4: Simplify right side
    89,750.78x = 7,920,234,859.22
  5. Step 5: Solve for x
    x = 7,920,234,859.22/89,750.78
  6. Step 6: Final answer
    x = 88,246.97

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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.