Home / 71,898.12-107,868.42-36,862.20

Finding the Fourth Proportional to 71,898.12, 107,868.42 and 36,862.20

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Solution

The fourth proportional to 71,898.12, 107,868.42 and 36,862.20 is: 55,304.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,898.12 : 107,868.42 = 36,862.20 : x
  2. Step 2: Convert to fraction form
    71,898.12/107,868.42 = 36,862.20/x
  3. Step 3: Cross multiply
    71,898.12x = 107,868.42 × 36,862.20
  4. Step 4: Simplify right side
    71,898.12x = 3,976,267,271.72
  5. Step 5: Solve for x
    x = 3,976,267,271.72/71,898.12
  6. Step 6: Final answer
    x = 55,304.19

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.