Home / 80,872.22-121,315.64-30,950.30

Finding the Fourth Proportional to 80,872.22, 121,315.64 and 30,950.30

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Solution

The fourth proportional to 80,872.22, 121,315.64 and 30,950.30 is: 46,428.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,872.22 : 121,315.64 = 30,950.30 : x
  2. Step 2: Convert to fraction form
    80,872.22/121,315.64 = 30,950.30/x
  3. Step 3: Cross multiply
    80,872.22x = 121,315.64 × 30,950.30
  4. Step 4: Simplify right side
    80,872.22x = 3,754,755,452.69
  5. Step 5: Solve for x
    x = 3,754,755,452.69/80,872.22
  6. Step 6: Final answer
    x = 46,428.25

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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.