Home / 80,934.80-121,411.02-31,057.26

Finding the Fourth Proportional to 80,934.80, 121,411.02 and 31,057.26

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Solution

The fourth proportional to 80,934.80, 121,411.02 and 31,057.26 is: 46,589.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,934.80 : 121,411.02 = 31,057.26 : x
  2. Step 2: Convert to fraction form
    80,934.80/121,411.02 = 31,057.26/x
  3. Step 3: Cross multiply
    80,934.80x = 121,411.02 × 31,057.26
  4. Step 4: Simplify right side
    80,934.80x = 3,770,693,615.01
  5. Step 5: Solve for x
    x = 3,770,693,615.01/80,934.80
  6. Step 6: Final answer
    x = 46,589.27

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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.