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Finding the Fourth Proportional to 81,714.76, 112,760.30 and 45,910.73

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Solution

The fourth proportional to 81,714.76, 112,760.30 and 45,910.73 is: 63,353.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,714.76 : 112,760.30 = 45,910.73 : x
  2. Step 2: Convert to fraction form
    81,714.76/112,760.30 = 45,910.73/x
  3. Step 3: Cross multiply
    81,714.76x = 112,760.30 × 45,910.73
  4. Step 4: Simplify right side
    81,714.76x = 5,176,908,084.70
  5. Step 5: Solve for x
    x = 5,176,908,084.70/81,714.76
  6. Step 6: Final answer
    x = 63,353.40

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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.