Home / 89,729.76-123,830.32-55,757.04

Finding the Fourth Proportional to 89,729.76, 123,830.32 and 55,757.04

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Solution

The fourth proportional to 89,729.76, 123,830.32 and 55,757.04 is: 76,946.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,729.76 : 123,830.32 = 55,757.04 : x
  2. Step 2: Convert to fraction form
    89,729.76/123,830.32 = 55,757.04/x
  3. Step 3: Cross multiply
    89,729.76x = 123,830.32 × 55,757.04
  4. Step 4: Simplify right side
    89,729.76x = 6,904,412,105.45
  5. Step 5: Solve for x
    x = 6,904,412,105.45/89,729.76
  6. Step 6: Final answer
    x = 76,946.74

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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.