Home / 83,753.12-115,580.04-45,512.68

Finding the Fourth Proportional to 83,753.12, 115,580.04 and 45,512.68

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Solution

The fourth proportional to 83,753.12, 115,580.04 and 45,512.68 is: 62,807.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,753.12 : 115,580.04 = 45,512.68 : x
  2. Step 2: Convert to fraction form
    83,753.12/115,580.04 = 45,512.68/x
  3. Step 3: Cross multiply
    83,753.12x = 115,580.04 × 45,512.68
  4. Step 4: Simplify right side
    83,753.12x = 5,260,357,374.91
  5. Step 5: Solve for x
    x = 5,260,357,374.91/83,753.12
  6. Step 6: Final answer
    x = 62,807.90

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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.