Home / 84,235.20-126,344.13-28,069.24

Finding the Fourth Proportional to 84,235.20, 126,344.13 and 28,069.24

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Solution

The fourth proportional to 84,235.20, 126,344.13 and 28,069.24 is: 42,100.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,235.20 : 126,344.13 = 28,069.24 : x
  2. Step 2: Convert to fraction form
    84,235.20/126,344.13 = 28,069.24/x
  3. Step 3: Cross multiply
    84,235.20x = 126,344.13 × 28,069.24
  4. Step 4: Simplify right side
    84,235.20x = 3,546,383,707.56
  5. Step 5: Solve for x
    x = 3,546,383,707.56/84,235.20
  6. Step 6: Final answer
    x = 42,100.97

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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.