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Finding the Fourth Proportional to 79,353.59, 109,371.57 and 75,616.55

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Solution

The fourth proportional to 79,353.59, 109,371.57 and 75,616.55 is: 104,220.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,353.59 : 109,371.57 = 75,616.55 : x
  2. Step 2: Convert to fraction form
    79,353.59/109,371.57 = 75,616.55/x
  3. Step 3: Cross multiply
    79,353.59x = 109,371.57 × 75,616.55
  4. Step 4: Simplify right side
    79,353.59x = 8,270,300,244.63
  5. Step 5: Solve for x
    x = 8,270,300,244.63/79,353.59
  6. Step 6: Final answer
    x = 104,220.88

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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.