Home / 79,391.32-119,089.50-39,926.86

Finding the Fourth Proportional to 79,391.32, 119,089.50 and 39,926.86

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Solution

The fourth proportional to 79,391.32, 119,089.50 and 39,926.86 is: 59,891.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,391.32 : 119,089.50 = 39,926.86 : x
  2. Step 2: Convert to fraction form
    79,391.32/119,089.50 = 39,926.86/x
  3. Step 3: Cross multiply
    79,391.32x = 119,089.50 × 39,926.86
  4. Step 4: Simplify right side
    79,391.32x = 4,754,869,793.97
  5. Step 5: Solve for x
    x = 4,754,869,793.97/79,391.32
  6. Step 6: Final answer
    x = 59,891.56

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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.