Home / 80,987.07-121,480.61-41,519.01

Finding the Fourth Proportional to 80,987.07, 121,480.61 and 41,519.01

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Solution

The fourth proportional to 80,987.07, 121,480.61 and 41,519.01 is: 62,278.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,987.07 : 121,480.61 = 41,519.01 : x
  2. Step 2: Convert to fraction form
    80,987.07/121,480.61 = 41,519.01/x
  3. Step 3: Cross multiply
    80,987.07x = 121,480.61 × 41,519.01
  4. Step 4: Simplify right side
    80,987.07x = 5,043,754,117.91
  5. Step 5: Solve for x
    x = 5,043,754,117.91/80,987.07
  6. Step 6: Final answer
    x = 62,278.51

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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.