Home / 83,947.10-125,920.65-47,006.30

Finding the Fourth Proportional to 83,947.10, 125,920.65 and 47,006.30

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Solution

The fourth proportional to 83,947.10, 125,920.65 and 47,006.30 is: 70,509.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,947.10 : 125,920.65 = 47,006.30 : x
  2. Step 2: Convert to fraction form
    83,947.10/125,920.65 = 47,006.30/x
  3. Step 3: Cross multiply
    83,947.10x = 125,920.65 × 47,006.30
  4. Step 4: Simplify right side
    83,947.10x = 5,919,063,850.10
  5. Step 5: Solve for x
    x = 5,919,063,850.10/83,947.10
  6. Step 6: Final answer
    x = 70,509.45

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.