Home / 84,319.44-126,467.61-28,158.36

Finding the Fourth Proportional to 84,319.44, 126,467.61 and 28,158.36

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Solution

The fourth proportional to 84,319.44, 126,467.61 and 28,158.36 is: 42,233.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,319.44 : 126,467.61 = 28,158.36 : x
  2. Step 2: Convert to fraction form
    84,319.44/126,467.61 = 28,158.36/x
  3. Step 3: Cross multiply
    84,319.44x = 126,467.61 × 28,158.36
  4. Step 4: Simplify right side
    84,319.44x = 3,561,120,490.72
  5. Step 5: Solve for x
    x = 3,561,120,490.72/84,319.44
  6. Step 6: Final answer
    x = 42,233.68

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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.