Home / 84,500.56-126,704.40-28,311.13

Finding the Fourth Proportional to 84,500.56, 126,704.40 and 28,311.13

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Solution

The fourth proportional to 84,500.56, 126,704.40 and 28,311.13 is: 42,451.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,500.56 : 126,704.40 = 28,311.13 : x
  2. Step 2: Convert to fraction form
    84,500.56/126,704.40 = 28,311.13/x
  3. Step 3: Cross multiply
    84,500.56x = 126,704.40 × 28,311.13
  4. Step 4: Simplify right side
    84,500.56x = 3,587,144,739.97
  5. Step 5: Solve for x
    x = 3,587,144,739.97/84,500.56
  6. Step 6: Final answer
    x = 42,451.14

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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.