Home / 89,331.84-123,251.68-55,365.28

Finding the Fourth Proportional to 89,331.84, 123,251.68 and 55,365.28

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Solution

The fourth proportional to 89,331.84, 123,251.68 and 55,365.28 is: 76,387.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,331.84 : 123,251.68 = 55,365.28 : x
  2. Step 2: Convert to fraction form
    89,331.84/123,251.68 = 55,365.28/x
  3. Step 3: Cross multiply
    89,331.84x = 123,251.68 × 55,365.28
  4. Step 4: Simplify right side
    89,331.84x = 6,823,863,773.67
  5. Step 5: Solve for x
    x = 6,823,863,773.67/89,331.84
  6. Step 6: Final answer
    x = 76,387.81

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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.