Home / 80,824.76-121,256.22-25,420.76

Finding the Fourth Proportional to 80,824.76, 121,256.22 and 25,420.76

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Solution

The fourth proportional to 80,824.76, 121,256.22 and 25,420.76 is: 38,137.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,824.76 : 121,256.22 = 25,420.76 : x
  2. Step 2: Convert to fraction form
    80,824.76/121,256.22 = 25,420.76/x
  3. Step 3: Cross multiply
    80,824.76x = 121,256.22 × 25,420.76
  4. Step 4: Simplify right side
    80,824.76x = 3,082,425,267.13
  5. Step 5: Solve for x
    x = 3,082,425,267.13/80,824.76
  6. Step 6: Final answer
    x = 38,137.14

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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.