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Finding the Fourth Proportional to 79,437.97, 109,627.32 and 47,600.70

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Solution

The fourth proportional to 79,437.97, 109,627.32 and 47,600.70 is: 65,690.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,437.97 : 109,627.32 = 47,600.70 : x
  2. Step 2: Convert to fraction form
    79,437.97/109,627.32 = 47,600.70/x
  3. Step 3: Cross multiply
    79,437.97x = 109,627.32 × 47,600.70
  4. Step 4: Simplify right side
    79,437.97x = 5,218,337,171.12
  5. Step 5: Solve for x
    x = 5,218,337,171.12/79,437.97
  6. Step 6: Final answer
    x = 65,690.72

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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.