Home / 84,612.96-126,920.40-34,680.24

Finding the Fourth Proportional to 84,612.96, 126,920.40 and 34,680.24

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Solution

The fourth proportional to 84,612.96, 126,920.40 and 34,680.24 is: 52,020.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,612.96 : 126,920.40 = 34,680.24 : x
  2. Step 2: Convert to fraction form
    84,612.96/126,920.40 = 34,680.24/x
  3. Step 3: Cross multiply
    84,612.96x = 126,920.40 × 34,680.24
  4. Step 4: Simplify right side
    84,612.96x = 4,401,629,932.90
  5. Step 5: Solve for x
    x = 4,401,629,932.90/84,612.96
  6. Step 6: Final answer
    x = 52,020.75

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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.