Home / 83,949.18-115,858.04-62,691.54

Finding the Fourth Proportional to 83,949.18, 115,858.04 and 62,691.54

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Solution

The fourth proportional to 83,949.18, 115,858.04 and 62,691.54 is: 86,520.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,949.18 : 115,858.04 = 62,691.54 : x
  2. Step 2: Convert to fraction form
    83,949.18/115,858.04 = 62,691.54/x
  3. Step 3: Cross multiply
    83,949.18x = 115,858.04 × 62,691.54
  4. Step 4: Simplify right side
    83,949.18x = 7,263,318,948.98
  5. Step 5: Solve for x
    x = 7,263,318,948.98/83,949.18
  6. Step 6: Final answer
    x = 86,520.43

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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.