Home / 81,238-121,849.28-25,063.02

Finding the Fourth Proportional to 81,238, 121,849.28 and 25,063.02

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Solution

The fourth proportional to 81,238, 121,849.28 and 25,063.02 is: 37,592.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,238 : 121,849.28 = 25,063.02 : x
  2. Step 2: Convert to fraction form
    81,238/121,849.28 = 25,063.02/x
  3. Step 3: Cross multiply
    81,238x = 121,849.28 × 25,063.02
  4. Step 4: Simplify right side
    81,238x = 3,053,910,941.63
  5. Step 5: Solve for x
    x = 3,053,910,941.63/81,238
  6. Step 6: Final answer
    x = 37,592.15

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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.