Home / 89,669.18-123,691.80-56,076.86

Finding the Fourth Proportional to 89,669.18, 123,691.80 and 56,076.86

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Solution

The fourth proportional to 89,669.18, 123,691.80 and 56,076.86 is: 77,353.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,669.18 : 123,691.80 = 56,076.86 : x
  2. Step 2: Convert to fraction form
    89,669.18/123,691.80 = 56,076.86/x
  3. Step 3: Cross multiply
    89,669.18x = 123,691.80 × 56,076.86
  4. Step 4: Simplify right side
    89,669.18x = 6,936,247,751.75
  5. Step 5: Solve for x
    x = 6,936,247,751.75/89,669.18
  6. Step 6: Final answer
    x = 77,353.75

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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.