Home / 80,718.43-121,104.89-35,733.58

Finding the Fourth Proportional to 80,718.43, 121,104.89 and 35,733.58

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Solution

The fourth proportional to 80,718.43, 121,104.89 and 35,733.58 is: 53,612.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,718.43 : 121,104.89 = 35,733.58 : x
  2. Step 2: Convert to fraction form
    80,718.43/121,104.89 = 35,733.58/x
  3. Step 3: Cross multiply
    80,718.43x = 121,104.89 × 35,733.58
  4. Step 4: Simplify right side
    80,718.43x = 4,327,511,275.21
  5. Step 5: Solve for x
    x = 4,327,511,275.21/80,718.43
  6. Step 6: Final answer
    x = 53,612.43

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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.