Home / 84,520.80-126,781.20-49,442.40

Finding the Fourth Proportional to 84,520.80, 126,781.20 and 49,442.40

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Solution

The fourth proportional to 84,520.80, 126,781.20 and 49,442.40 is: 74,163.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,520.80 : 126,781.20 = 49,442.40 : x
  2. Step 2: Convert to fraction form
    84,520.80/126,781.20 = 49,442.40/x
  3. Step 3: Cross multiply
    84,520.80x = 126,781.20 × 49,442.40
  4. Step 4: Simplify right side
    84,520.80x = 6,268,366,802.88
  5. Step 5: Solve for x
    x = 6,268,366,802.88/84,520.80
  6. Step 6: Final answer
    x = 74,163.60

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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.