Home / 89,831.11-123,967.53-49,545.97

Finding the Fourth Proportional to 89,831.11, 123,967.53 and 49,545.97

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Solution

The fourth proportional to 89,831.11, 123,967.53 and 49,545.97 is: 68,373.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,831.11 : 123,967.53 = 49,545.97 : x
  2. Step 2: Convert to fraction form
    89,831.11/123,967.53 = 49,545.97/x
  3. Step 3: Cross multiply
    89,831.11x = 123,967.53 × 49,545.97
  4. Step 4: Simplify right side
    89,831.11x = 6,142,091,522.35
  5. Step 5: Solve for x
    x = 6,142,091,522.35/89,831.11
  6. Step 6: Final answer
    x = 68,373.77

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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.