Home / 99,965.76-137,956.46-54,646.82

Finding the Fourth Proportional to 99,965.76, 137,956.46 and 54,646.82

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Solution

The fourth proportional to 99,965.76, 137,956.46 and 54,646.82 is: 75,414.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,965.76 : 137,956.46 = 54,646.82 : x
  2. Step 2: Convert to fraction form
    99,965.76/137,956.46 = 54,646.82/x
  3. Step 3: Cross multiply
    99,965.76x = 137,956.46 × 54,646.82
  4. Step 4: Simplify right side
    99,965.76x = 7,538,880,874.44
  5. Step 5: Solve for x
    x = 7,538,880,874.44/99,965.76
  6. Step 6: Final answer
    x = 75,414.63

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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.