Home / 76,691.97-105,818.65-48,381.25

Finding the Fourth Proportional to 76,691.97, 105,818.65 and 48,381.25

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Solution

The fourth proportional to 76,691.97, 105,818.65 and 48,381.25 is: 66,755.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,691.97 : 105,818.65 = 48,381.25 : x
  2. Step 2: Convert to fraction form
    76,691.97/105,818.65 = 48,381.25/x
  3. Step 3: Cross multiply
    76,691.97x = 105,818.65 × 48,381.25
  4. Step 4: Simplify right side
    76,691.97x = 5,119,638,560.31
  5. Step 5: Solve for x
    x = 5,119,638,560.31/76,691.97
  6. Step 6: Final answer
    x = 66,755.86

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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.