Home / 80,703.20-121,074.24-25,299.20

Finding the Fourth Proportional to 80,703.20, 121,074.24 and 25,299.20

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Solution

The fourth proportional to 80,703.20, 121,074.24 and 25,299.20 is: 37,954.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,703.20 : 121,074.24 = 25,299.20 : x
  2. Step 2: Convert to fraction form
    80,703.20/121,074.24 = 25,299.20/x
  3. Step 3: Cross multiply
    80,703.20x = 121,074.24 × 25,299.20
  4. Step 4: Simplify right side
    80,703.20x = 3,063,080,807.24
  5. Step 5: Solve for x
    x = 3,063,080,807.24/80,703.20
  6. Step 6: Final answer
    x = 37,954.89

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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.