Home / 40,454.15-60,671.49-20,722.55

Finding the Fourth Proportional to 40,454.15, 60,671.49 and 20,722.55

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Solution

The fourth proportional to 40,454.15, 60,671.49 and 20,722.55 is: 31,078.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,454.15 : 60,671.49 = 20,722.55 : x
  2. Step 2: Convert to fraction form
    40,454.15/60,671.49 = 20,722.55/x
  3. Step 3: Cross multiply
    40,454.15x = 60,671.49 × 20,722.55
  4. Step 4: Simplify right side
    40,454.15x = 1,257,267,681.74
  5. Step 5: Solve for x
    x = 1,257,267,681.74/40,454.15
  6. Step 6: Final answer
    x = 31,078.83

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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.