Home / 80,675.39-121,008.46-30,760.53

Finding the Fourth Proportional to 80,675.39, 121,008.46 and 30,760.53

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Solution

The fourth proportional to 80,675.39, 121,008.46 and 30,760.53 is: 46,139.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,675.39 : 121,008.46 = 30,760.53 : x
  2. Step 2: Convert to fraction form
    80,675.39/121,008.46 = 30,760.53/x
  3. Step 3: Cross multiply
    80,675.39x = 121,008.46 × 30,760.53
  4. Step 4: Simplify right side
    80,675.39x = 3,722,284,364.08
  5. Step 5: Solve for x
    x = 3,722,284,364.08/80,675.39
  6. Step 6: Final answer
    x = 46,139.03

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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.