Home / 84,422.32-126,570.56-28,229.20

Finding the Fourth Proportional to 84,422.32, 126,570.56 and 28,229.20

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Solution

The fourth proportional to 84,422.32, 126,570.56 and 28,229.20 is: 42,322.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,422.32 : 126,570.56 = 28,229.20 : x
  2. Step 2: Convert to fraction form
    84,422.32/126,570.56 = 28,229.20/x
  3. Step 3: Cross multiply
    84,422.32x = 126,570.56 × 28,229.20
  4. Step 4: Simplify right side
    84,422.32x = 3,572,985,652.35
  5. Step 5: Solve for x
    x = 3,572,985,652.35/84,422.32
  6. Step 6: Final answer
    x = 42,322.76

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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.