Home / 80,926.26-121,390.56-31,008.90

Finding the Fourth Proportional to 80,926.26, 121,390.56 and 31,008.90

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Solution

The fourth proportional to 80,926.26, 121,390.56 and 31,008.90 is: 46,513.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,926.26 : 121,390.56 = 31,008.90 : x
  2. Step 2: Convert to fraction form
    80,926.26/121,390.56 = 31,008.90/x
  3. Step 3: Cross multiply
    80,926.26x = 121,390.56 × 31,008.90
  4. Step 4: Simplify right side
    80,926.26x = 3,764,187,735.98
  5. Step 5: Solve for x
    x = 3,764,187,735.98/80,926.26
  6. Step 6: Final answer
    x = 46,513.80

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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.