Home / 99,831.01-137,765.74-54,508.85

Finding the Fourth Proportional to 99,831.01, 137,765.74 and 54,508.85

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Solution

The fourth proportional to 99,831.01, 137,765.74 and 54,508.85 is: 75,221.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,831.01 : 137,765.74 = 54,508.85 : x
  2. Step 2: Convert to fraction form
    99,831.01/137,765.74 = 54,508.85/x
  3. Step 3: Cross multiply
    99,831.01x = 137,765.74 × 54,508.85
  4. Step 4: Simplify right side
    99,831.01x = 7,509,451,784.25
  5. Step 5: Solve for x
    x = 7,509,451,784.25/99,831.01
  6. Step 6: Final answer
    x = 75,221.63

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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.