Home / 89,958.40-124,179.20-58,129.92

Finding the Fourth Proportional to 89,958.40, 124,179.20 and 58,129.92

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Solution

The fourth proportional to 89,958.40, 124,179.20 and 58,129.92 is: 80,242.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,958.40 : 124,179.20 = 58,129.92 : x
  2. Step 2: Convert to fraction form
    89,958.40/124,179.20 = 58,129.92/x
  3. Step 3: Cross multiply
    89,958.40x = 124,179.20 × 58,129.92
  4. Step 4: Simplify right side
    89,958.40x = 7,218,526,961.66
  5. Step 5: Solve for x
    x = 7,218,526,961.66/89,958.40
  6. Step 6: Final answer
    x = 80,242.95

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1.5x scale

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.