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Finding the Fourth Proportional to 84,573.26, 126,874.48 and 28,418.76

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Solution

The fourth proportional to 84,573.26, 126,874.48 and 28,418.76 is: 42,633.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,573.26 : 126,874.48 = 28,418.76 : x
  2. Step 2: Convert to fraction form
    84,573.26/126,874.48 = 28,418.76/x
  3. Step 3: Cross multiply
    84,573.26x = 126,874.48 × 28,418.76
  4. Step 4: Simplify right side
    84,573.26x = 3,605,615,397.24
  5. Step 5: Solve for x
    x = 3,605,615,397.24/84,573.26
  6. Step 6: Final answer
    x = 42,633.04

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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.