Home / 81,660.98-112,691.30-45,850.16

Finding the Fourth Proportional to 81,660.98, 112,691.30 and 45,850.16

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Solution

The fourth proportional to 81,660.98, 112,691.30 and 45,850.16 is: 63,272.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,660.98 : 112,691.30 = 45,850.16 : x
  2. Step 2: Convert to fraction form
    81,660.98/112,691.30 = 45,850.16/x
  3. Step 3: Cross multiply
    81,660.98x = 112,691.30 × 45,850.16
  4. Step 4: Simplify right side
    81,660.98x = 5,166,914,135.61
  5. Step 5: Solve for x
    x = 5,166,914,135.61/81,660.98
  6. Step 6: Final answer
    x = 63,272.74

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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.