Home / 89,830.87-123,967.19-49,545.72

Finding the Fourth Proportional to 89,830.87, 123,967.19 and 49,545.72

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Solution

The fourth proportional to 89,830.87, 123,967.19 and 49,545.72 is: 68,373.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,830.87 : 123,967.19 = 49,545.72 : x
  2. Step 2: Convert to fraction form
    89,830.87/123,967.19 = 49,545.72/x
  3. Step 3: Cross multiply
    89,830.87x = 123,967.19 × 49,545.72
  4. Step 4: Simplify right side
    89,830.87x = 6,142,043,437.20
  5. Step 5: Solve for x
    x = 6,142,043,437.20/89,830.87
  6. Step 6: Final answer
    x = 68,373.42

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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.