Home / 83,391.60-115,080.58-45,151.56

Finding the Fourth Proportional to 83,391.60, 115,080.58 and 45,151.56

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Solution

The fourth proportional to 83,391.60, 115,080.58 and 45,151.56 is: 62,309.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,391.60 : 115,080.58 = 45,151.56 : x
  2. Step 2: Convert to fraction form
    83,391.60/115,080.58 = 45,151.56/x
  3. Step 3: Cross multiply
    83,391.60x = 115,080.58 × 45,151.56
  4. Step 4: Simplify right side
    83,391.60x = 5,196,067,712.70
  5. Step 5: Solve for x
    x = 5,196,067,712.70/83,391.60
  6. Step 6: Final answer
    x = 62,309.25

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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.