Home / 45,149.46-67,247.48-42,778.60

Finding the Fourth Proportional to 45,149.46, 67,247.48 and 42,778.60

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Solution

The fourth proportional to 45,149.46, 67,247.48 and 42,778.60 is: 63,716.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,149.46 : 67,247.48 = 42,778.60 : x
  2. Step 2: Convert to fraction form
    45,149.46/67,247.48 = 42,778.60/x
  3. Step 3: Cross multiply
    45,149.46x = 67,247.48 × 42,778.60
  4. Step 4: Simplify right side
    45,149.46x = 2,876,753,047.93
  5. Step 5: Solve for x
    x = 2,876,753,047.93/45,149.46
  6. Step 6: Final answer
    x = 63,716.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.