Home / 89,432.39-123,365.31-55,840.07

Finding the Fourth Proportional to 89,432.39, 123,365.31 and 55,840.07

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Solution

The fourth proportional to 89,432.39, 123,365.31 and 55,840.07 is: 77,027.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,432.39 : 123,365.31 = 55,840.07 : x
  2. Step 2: Convert to fraction form
    89,432.39/123,365.31 = 55,840.07/x
  3. Step 3: Cross multiply
    89,432.39x = 123,365.31 × 55,840.07
  4. Step 4: Simplify right side
    89,432.39x = 6,888,727,545.97
  5. Step 5: Solve for x
    x = 6,888,727,545.97/89,432.39
  6. Step 6: Final answer
    x = 77,027.21

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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.