Home / 84,331.52-126,613.92-42,807.68

Finding the Fourth Proportional to 84,331.52, 126,613.92 and 42,807.68

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Solution

The fourth proportional to 84,331.52, 126,613.92 and 42,807.68 is: 64,270.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,331.52 : 126,613.92 = 42,807.68 : x
  2. Step 2: Convert to fraction form
    84,331.52/126,613.92 = 42,807.68/x
  3. Step 3: Cross multiply
    84,331.52x = 126,613.92 × 42,807.68
  4. Step 4: Simplify right side
    84,331.52x = 5,420,048,170.91
  5. Step 5: Solve for x
    x = 5,420,048,170.91/84,331.52
  6. Step 6: Final answer
    x = 64,270.73

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1.5x scale

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.