Home / 71,836.25-99,126.92-40,008.11

Finding the Fourth Proportional to 71,836.25, 99,126.92 and 40,008.11

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Solution

The fourth proportional to 71,836.25, 99,126.92 and 40,008.11 is: 55,207.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,836.25 : 99,126.92 = 40,008.11 : x
  2. Step 2: Convert to fraction form
    71,836.25/99,126.92 = 40,008.11/x
  3. Step 3: Cross multiply
    71,836.25x = 99,126.92 × 40,008.11
  4. Step 4: Simplify right side
    71,836.25x = 3,965,880,323.71
  5. Step 5: Solve for x
    x = 3,965,880,323.71/71,836.25
  6. Step 6: Final answer
    x = 55,207.23

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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.