Home / 80,943.68-121,415.52-25,544

Finding the Fourth Proportional to 80,943.68, 121,415.52 and 25,544

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Solution

The fourth proportional to 80,943.68, 121,415.52 and 25,544 is: 38,316.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,943.68 : 121,415.52 = 25,544 : x
  2. Step 2: Convert to fraction form
    80,943.68/121,415.52 = 25,544/x
  3. Step 3: Cross multiply
    80,943.68x = 121,415.52 × 25,544
  4. Step 4: Simplify right side
    80,943.68x = 3,101,438,042.88
  5. Step 5: Solve for x
    x = 3,101,438,042.88/80,943.68
  6. Step 6: Final answer
    x = 38,316.00

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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.