Home / 83,972.12-115,884.32-45,733.14

Finding the Fourth Proportional to 83,972.12, 115,884.32 and 45,733.14

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Solution

The fourth proportional to 83,972.12, 115,884.32 and 45,733.14 is: 63,113.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,972.12 : 115,884.32 = 45,733.14 : x
  2. Step 2: Convert to fraction form
    83,972.12/115,884.32 = 45,733.14/x
  3. Step 3: Cross multiply
    83,972.12x = 115,884.32 × 45,733.14
  4. Step 4: Simplify right side
    83,972.12x = 5,299,753,601.70
  5. Step 5: Solve for x
    x = 5,299,753,601.70/83,972.12
  6. Step 6: Final answer
    x = 63,113.26

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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.