Home / 80,954.20-121,431.30-25,550.20

Finding the Fourth Proportional to 80,954.20, 121,431.30 and 25,550.20

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Solution

The fourth proportional to 80,954.20, 121,431.30 and 25,550.20 is: 38,325.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,954.20 : 121,431.30 = 25,550.20 : x
  2. Step 2: Convert to fraction form
    80,954.20/121,431.30 = 25,550.20/x
  3. Step 3: Cross multiply
    80,954.20x = 121,431.30 × 25,550.20
  4. Step 4: Simplify right side
    80,954.20x = 3,102,594,001.26
  5. Step 5: Solve for x
    x = 3,102,594,001.26/80,954.20
  6. Step 6: Final answer
    x = 38,325.30

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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.