Home / 80,718.26-121,140.56-55,932.26

Finding the Fourth Proportional to 80,718.26, 121,140.56 and 55,932.26

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Solution

The fourth proportional to 80,718.26, 121,140.56 and 55,932.26 is: 83,942.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,718.26 : 121,140.56 = 55,932.26 : x
  2. Step 2: Convert to fraction form
    80,718.26/121,140.56 = 55,932.26/x
  3. Step 3: Cross multiply
    80,718.26x = 121,140.56 × 55,932.26
  4. Step 4: Simplify right side
    80,718.26x = 6,775,664,832.59
  5. Step 5: Solve for x
    x = 6,775,664,832.59/80,718.26
  6. Step 6: Final answer
    x = 83,942.16

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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.