Home / 60,909.83-91,377.79-18,218.61

Finding the Fourth Proportional to 60,909.83, 91,377.79 and 18,218.61

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Solution

The fourth proportional to 60,909.83, 91,377.79 and 18,218.61 is: 27,331.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,909.83 : 91,377.79 = 18,218.61 : x
  2. Step 2: Convert to fraction form
    60,909.83/91,377.79 = 18,218.61/x
  3. Step 3: Cross multiply
    60,909.83x = 91,377.79 × 18,218.61
  4. Step 4: Simplify right side
    60,909.83x = 1,664,776,298.75
  5. Step 5: Solve for x
    x = 1,664,776,298.75/60,909.83
  6. Step 6: Final answer
    x = 27,331.82

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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.