Home / 67,177.20-100,762.17-20,426.43

Finding the Fourth Proportional to 67,177.20, 100,762.17 and 20,426.43

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Solution

The fourth proportional to 67,177.20, 100,762.17 and 20,426.43 is: 30,638.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,177.20 : 100,762.17 = 20,426.43 : x
  2. Step 2: Convert to fraction form
    67,177.20/100,762.17 = 20,426.43/x
  3. Step 3: Cross multiply
    67,177.20x = 100,762.17 × 20,426.43
  4. Step 4: Simplify right side
    67,177.20x = 2,058,211,412.15
  5. Step 5: Solve for x
    x = 2,058,211,412.15/67,177.20
  6. Step 6: Final answer
    x = 30,638.54

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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.