Home / 83,458.13-115,172.26-45,732.38

Finding the Fourth Proportional to 83,458.13, 115,172.26 and 45,732.38

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Solution

The fourth proportional to 83,458.13, 115,172.26 and 45,732.38 is: 63,110.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,458.13 : 115,172.26 = 45,732.38 : x
  2. Step 2: Convert to fraction form
    83,458.13/115,172.26 = 45,732.38/x
  3. Step 3: Cross multiply
    83,458.13x = 115,172.26 × 45,732.38
  4. Step 4: Simplify right side
    83,458.13x = 5,267,100,869.59
  5. Step 5: Solve for x
    x = 5,267,100,869.59/83,458.13
  6. Step 6: Final answer
    x = 63,110.70

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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.