Home / 80,775.28-121,182.08-25,371.28

Finding the Fourth Proportional to 80,775.28, 121,182.08 and 25,371.28

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Solution

The fourth proportional to 80,775.28, 121,182.08 and 25,371.28 is: 38,062.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,775.28 : 121,182.08 = 25,371.28 : x
  2. Step 2: Convert to fraction form
    80,775.28/121,182.08 = 25,371.28/x
  3. Step 3: Cross multiply
    80,775.28x = 121,182.08 × 25,371.28
  4. Step 4: Simplify right side
    80,775.28x = 3,074,544,482.66
  5. Step 5: Solve for x
    x = 3,074,544,482.66/80,775.28
  6. Step 6: Final answer
    x = 38,062.94

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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.