Home / 80,641.28-121,016.96-28,050.24

Finding the Fourth Proportional to 80,641.28, 121,016.96 and 28,050.24

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Solution

The fourth proportional to 80,641.28, 121,016.96 and 28,050.24 is: 42,094.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,641.28 : 121,016.96 = 28,050.24 : x
  2. Step 2: Convert to fraction form
    80,641.28/121,016.96 = 28,050.24/x
  3. Step 3: Cross multiply
    80,641.28x = 121,016.96 × 28,050.24
  4. Step 4: Simplify right side
    80,641.28x = 3,394,554,772.07
  5. Step 5: Solve for x
    x = 3,394,554,772.07/80,641.28
  6. Step 6: Final answer
    x = 42,094.51

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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.