Home / 80,440.32-120,660.48-25,040.64

Finding the Fourth Proportional to 80,440.32, 120,660.48 and 25,040.64

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Solution

The fourth proportional to 80,440.32, 120,660.48 and 25,040.64 is: 37,560.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,440.32 : 120,660.48 = 25,040.64 : x
  2. Step 2: Convert to fraction form
    80,440.32/120,660.48 = 25,040.64/x
  3. Step 3: Cross multiply
    80,440.32x = 120,660.48 × 25,040.64
  4. Step 4: Simplify right side
    80,440.32x = 3,021,415,641.91
  5. Step 5: Solve for x
    x = 3,021,415,641.91/80,440.32
  6. Step 6: Final answer
    x = 37,560.96

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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.