Home / 83,508.15-115,236.90-47,691.12

Finding the Fourth Proportional to 83,508.15, 115,236.90 and 47,691.12

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Solution

The fourth proportional to 83,508.15, 115,236.90 and 47,691.12 is: 65,811.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,508.15 : 115,236.90 = 47,691.12 : x
  2. Step 2: Convert to fraction form
    83,508.15/115,236.90 = 47,691.12/x
  3. Step 3: Cross multiply
    83,508.15x = 115,236.90 × 47,691.12
  4. Step 4: Simplify right side
    83,508.15x = 5,495,776,826.33
  5. Step 5: Solve for x
    x = 5,495,776,826.33/83,508.15
  6. Step 6: Final answer
    x = 65,811.26

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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.