Home / 84,377.12-126,577.80-28,200.44

Finding the Fourth Proportional to 84,377.12, 126,577.80 and 28,200.44

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Solution

The fourth proportional to 84,377.12, 126,577.80 and 28,200.44 is: 42,304.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,377.12 : 126,577.80 = 28,200.44 : x
  2. Step 2: Convert to fraction form
    84,377.12/126,577.80 = 28,200.44/x
  3. Step 3: Cross multiply
    84,377.12x = 126,577.80 × 28,200.44
  4. Step 4: Simplify right side
    84,377.12x = 3,569,549,654.23
  5. Step 5: Solve for x
    x = 3,569,549,654.23/84,377.12
  6. Step 6: Final answer
    x = 42,304.71

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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.