Home / 45,160.40-67,760.16-18,871.04

Finding the Fourth Proportional to 45,160.40, 67,760.16 and 18,871.04

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Solution

The fourth proportional to 45,160.40, 67,760.16 and 18,871.04 is: 28,314.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,160.40 : 67,760.16 = 18,871.04 : x
  2. Step 2: Convert to fraction form
    45,160.40/67,760.16 = 18,871.04/x
  3. Step 3: Cross multiply
    45,160.40x = 67,760.16 × 18,871.04
  4. Step 4: Simplify right side
    45,160.40x = 1,278,704,689.77
  5. Step 5: Solve for x
    x = 1,278,704,689.77/45,160.40
  6. Step 6: Final answer
    x = 28,314.73

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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.