Home / 72,619.06-108,934.02-20,028.10

Finding the Fourth Proportional to 72,619.06, 108,934.02 and 20,028.10

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Solution

The fourth proportional to 72,619.06, 108,934.02 and 20,028.10 is: 30,043.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,619.06 : 108,934.02 = 20,028.10 : x
  2. Step 2: Convert to fraction form
    72,619.06/108,934.02 = 20,028.10/x
  3. Step 3: Cross multiply
    72,619.06x = 108,934.02 × 20,028.10
  4. Step 4: Simplify right side
    72,619.06x = 2,181,741,445.96
  5. Step 5: Solve for x
    x = 2,181,741,445.96/72,619.06
  6. Step 6: Final answer
    x = 30,043.65

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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.