Home / 88,247.60-121,781.16-47,961.68

Finding the Fourth Proportional to 88,247.60, 121,781.16 and 47,961.68

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Solution

The fourth proportional to 88,247.60, 121,781.16 and 47,961.68 is: 66,186.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,247.60 : 121,781.16 = 47,961.68 : x
  2. Step 2: Convert to fraction form
    88,247.60/121,781.16 = 47,961.68/x
  3. Step 3: Cross multiply
    88,247.60x = 121,781.16 × 47,961.68
  4. Step 4: Simplify right side
    88,247.60x = 5,840,829,025.95
  5. Step 5: Solve for x
    x = 5,840,829,025.95/88,247.60
  6. Step 6: Final answer
    x = 66,186.83

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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.