Home / 80,521.28-120,781.94-25,117.28

Finding the Fourth Proportional to 80,521.28, 120,781.94 and 25,117.28

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Solution

The fourth proportional to 80,521.28, 120,781.94 and 25,117.28 is: 37,675.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,521.28 : 120,781.94 = 25,117.28 : x
  2. Step 2: Convert to fraction form
    80,521.28/120,781.94 = 25,117.28/x
  3. Step 3: Cross multiply
    80,521.28x = 120,781.94 × 25,117.28
  4. Step 4: Simplify right side
    80,521.28x = 3,033,713,359.51
  5. Step 5: Solve for x
    x = 3,033,713,359.51/80,521.28
  6. Step 6: Final answer
    x = 37,675.92

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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.