Home / 83,516.14-115,251.51-45,789.58

Finding the Fourth Proportional to 83,516.14, 115,251.51 and 45,789.58

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Solution

The fourth proportional to 83,516.14, 115,251.51 and 45,789.58 is: 63,189.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,516.14 : 115,251.51 = 45,789.58 : x
  2. Step 2: Convert to fraction form
    83,516.14/115,251.51 = 45,789.58/x
  3. Step 3: Cross multiply
    83,516.14x = 115,251.51 × 45,789.58
  4. Step 4: Simplify right side
    83,516.14x = 5,277,318,237.27
  5. Step 5: Solve for x
    x = 5,277,318,237.27/83,516.14
  6. Step 6: Final answer
    x = 63,189.20

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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.