Home / 55,770.32-76,963.11-30,276.70

Finding the Fourth Proportional to 55,770.32, 76,963.11 and 30,276.70

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Solution

The fourth proportional to 55,770.32, 76,963.11 and 30,276.70 is: 41,781.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,770.32 : 76,963.11 = 30,276.70 : x
  2. Step 2: Convert to fraction form
    55,770.32/76,963.11 = 30,276.70/x
  3. Step 3: Cross multiply
    55,770.32x = 76,963.11 × 30,276.70
  4. Step 4: Simplify right side
    55,770.32x = 2,330,188,965.13
  5. Step 5: Solve for x
    x = 2,330,188,965.13/55,770.32
  6. Step 6: Final answer
    x = 41,781.88

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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.