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Finding the Fourth Proportional to 79,117.57, 109,179.57 and 43,306.84

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Solution

The fourth proportional to 79,117.57, 109,179.57 and 43,306.84 is: 59,761.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,117.57 : 109,179.57 = 43,306.84 : x
  2. Step 2: Convert to fraction form
    79,117.57/109,179.57 = 43,306.84/x
  3. Step 3: Cross multiply
    79,117.57x = 109,179.57 × 43,306.84
  4. Step 4: Simplify right side
    79,117.57x = 4,728,222,169.26
  5. Step 5: Solve for x
    x = 4,728,222,169.26/79,117.57
  6. Step 6: Final answer
    x = 59,761.97

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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.