Home / 84,531.36-126,778.68-25,351.14

Finding the Fourth Proportional to 84,531.36, 126,778.68 and 25,351.14

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Solution

The fourth proportional to 84,531.36, 126,778.68 and 25,351.14 is: 38,021.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,531.36 : 126,778.68 = 25,351.14 : x
  2. Step 2: Convert to fraction form
    84,531.36/126,778.68 = 25,351.14/x
  3. Step 3: Cross multiply
    84,531.36x = 126,778.68 × 25,351.14
  4. Step 4: Simplify right side
    84,531.36x = 3,213,984,065.70
  5. Step 5: Solve for x
    x = 3,213,984,065.70/84,531.36
  6. Step 6: Final answer
    x = 38,021.20

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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.