Home / 72,451.30-108,531.15-48,831.70

Finding the Fourth Proportional to 72,451.30, 108,531.15 and 48,831.70

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Solution

The fourth proportional to 72,451.30, 108,531.15 and 48,831.70 is: 73,149.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,451.30 : 108,531.15 = 48,831.70 : x
  2. Step 2: Convert to fraction form
    72,451.30/108,531.15 = 48,831.70/x
  3. Step 3: Cross multiply
    72,451.30x = 108,531.15 × 48,831.70
  4. Step 4: Simplify right side
    72,451.30x = 5,299,760,557.46
  5. Step 5: Solve for x
    x = 5,299,760,557.46/72,451.30
  6. Step 6: Final answer
    x = 73,149.28

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.