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Finding the Fourth Proportional to 79,193.97, 109,288.89 and 43,387.38

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Solution

The fourth proportional to 79,193.97, 109,288.89 and 43,387.38 is: 59,875.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,193.97 : 109,288.89 = 43,387.38 : x
  2. Step 2: Convert to fraction form
    79,193.97/109,288.89 = 43,387.38/x
  3. Step 3: Cross multiply
    79,193.97x = 109,288.89 × 43,387.38
  4. Step 4: Simplify right side
    79,193.97x = 4,741,758,600.21
  5. Step 5: Solve for x
    x = 4,741,758,600.21/79,193.97
  6. Step 6: Final answer
    x = 59,875.25

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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.