Home / 80,874.27-121,283.46-30,968.55

Finding the Fourth Proportional to 80,874.27, 121,283.46 and 30,968.55

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Solution

The fourth proportional to 80,874.27, 121,283.46 and 30,968.55 is: 46,442.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,874.27 : 121,283.46 = 30,968.55 : x
  2. Step 2: Convert to fraction form
    80,874.27/121,283.46 = 30,968.55/x
  3. Step 3: Cross multiply
    80,874.27x = 121,283.46 × 30,968.55
  4. Step 4: Simplify right side
    80,874.27x = 3,755,972,895.18
  5. Step 5: Solve for x
    x = 3,755,972,895.18/80,874.27
  6. Step 6: Final answer
    x = 46,442.12

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1.5x scale

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.