Home / 83,347.12-115,022.20-47,542.96

Finding the Fourth Proportional to 83,347.12, 115,022.20 and 47,542.96

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Solution

The fourth proportional to 83,347.12, 115,022.20 and 47,542.96 is: 65,611.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,347.12 : 115,022.20 = 47,542.96 : x
  2. Step 2: Convert to fraction form
    83,347.12/115,022.20 = 47,542.96/x
  3. Step 3: Cross multiply
    83,347.12x = 115,022.20 × 47,542.96
  4. Step 4: Simplify right side
    83,347.12x = 5,468,495,853.71
  5. Step 5: Solve for x
    x = 5,468,495,853.71/83,347.12
  6. Step 6: Final answer
    x = 65,611.10

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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.