Home / 84,380.40-126,572.10-25,216.80

Finding the Fourth Proportional to 84,380.40, 126,572.10 and 25,216.80

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Solution

The fourth proportional to 84,380.40, 126,572.10 and 25,216.80 is: 37,825.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,380.40 : 126,572.10 = 25,216.80 : x
  2. Step 2: Convert to fraction form
    84,380.40/126,572.10 = 25,216.80/x
  3. Step 3: Cross multiply
    84,380.40x = 126,572.10 × 25,216.80
  4. Step 4: Simplify right side
    84,380.40x = 3,191,743,331.28
  5. Step 5: Solve for x
    x = 3,191,743,331.28/84,380.40
  6. Step 6: Final answer
    x = 37,825.65

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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.