Home / 76,892.20-115,502.18-72,397.92

Finding the Fourth Proportional to 76,892.20, 115,502.18 and 72,397.92

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Solution

The fourth proportional to 76,892.20, 115,502.18 and 72,397.92 is: 108,751.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,892.20 : 115,502.18 = 72,397.92 : x
  2. Step 2: Convert to fraction form
    76,892.20/115,502.18 = 72,397.92/x
  3. Step 3: Cross multiply
    76,892.20x = 115,502.18 × 72,397.92
  4. Step 4: Simplify right side
    76,892.20x = 8,362,117,587.47
  5. Step 5: Solve for x
    x = 8,362,117,587.47/76,892.20
  6. Step 6: Final answer
    x = 108,751.18

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1.5x scale

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.