Home / 79,306.35-109,385.39-67,350.75

Finding the Fourth Proportional to 79,306.35, 109,385.39 and 67,350.75

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Solution

The fourth proportional to 79,306.35, 109,385.39 and 67,350.75 is: 92,895.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,306.35 : 109,385.39 = 67,350.75 : x
  2. Step 2: Convert to fraction form
    79,306.35/109,385.39 = 67,350.75/x
  3. Step 3: Cross multiply
    79,306.35x = 109,385.39 × 67,350.75
  4. Step 4: Simplify right side
    79,306.35x = 7,367,187,718.79
  5. Step 5: Solve for x
    x = 7,367,187,718.79/79,306.35
  6. Step 6: Final answer
    x = 92,895.31

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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.