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Finding the Fourth Proportional to 71,965.39, 99,293.01 and 69,127.76

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Solution

The fourth proportional to 71,965.39, 99,293.01 and 69,127.76 is: 95,377.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,965.39 : 99,293.01 = 69,127.76 : x
  2. Step 2: Convert to fraction form
    71,965.39/99,293.01 = 69,127.76/x
  3. Step 3: Cross multiply
    71,965.39x = 99,293.01 × 69,127.76
  4. Step 4: Simplify right side
    71,965.39x = 6,863,903,364.96
  5. Step 5: Solve for x
    x = 6,863,903,364.96/71,965.39
  6. Step 6: Final answer
    x = 95,377.85

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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.