Home / 89,729.30-123,831.92-49,443.08

Finding the Fourth Proportional to 89,729.30, 123,831.92 and 49,443.08

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Solution

The fourth proportional to 89,729.30, 123,831.92 and 49,443.08 is: 68,234.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,729.30 : 123,831.92 = 49,443.08 : x
  2. Step 2: Convert to fraction form
    89,729.30/123,831.92 = 49,443.08/x
  3. Step 3: Cross multiply
    89,729.30x = 123,831.92 × 49,443.08
  4. Step 4: Simplify right side
    89,729.30x = 6,122,631,031.56
  5. Step 5: Solve for x
    x = 6,122,631,031.56/89,729.30
  6. Step 6: Final answer
    x = 68,234.47

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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.