Home / 80,766.96-121,154.52-30,851.40

Finding the Fourth Proportional to 80,766.96, 121,154.52 and 30,851.40

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Solution

The fourth proportional to 80,766.96, 121,154.52 and 30,851.40 is: 46,278.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,766.96 : 121,154.52 = 30,851.40 : x
  2. Step 2: Convert to fraction form
    80,766.96/121,154.52 = 30,851.40/x
  3. Step 3: Cross multiply
    80,766.96x = 121,154.52 × 30,851.40
  4. Step 4: Simplify right side
    80,766.96x = 3,737,786,558.33
  5. Step 5: Solve for x
    x = 3,737,786,558.33/80,766.96
  6. Step 6: Final answer
    x = 46,278.66

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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.