Home / 89,631.20-123,686.52-49,346.66

Finding the Fourth Proportional to 89,631.20, 123,686.52 and 49,346.66

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Solution

The fourth proportional to 89,631.20, 123,686.52 and 49,346.66 is: 68,095.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,631.20 : 123,686.52 = 49,346.66 : x
  2. Step 2: Convert to fraction form
    89,631.20/123,686.52 = 49,346.66/x
  3. Step 3: Cross multiply
    89,631.20x = 123,686.52 × 49,346.66
  4. Step 4: Simplify right side
    89,631.20x = 6,103,516,649.02
  5. Step 5: Solve for x
    x = 6,103,516,649.02/89,631.20
  6. Step 6: Final answer
    x = 68,095.89

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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.