Home / 81,233.98-121,853.06-38,529.43

Finding the Fourth Proportional to 81,233.98, 121,853.06 and 38,529.43

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Solution

The fourth proportional to 81,233.98, 121,853.06 and 38,529.43 is: 57,795.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,233.98 : 121,853.06 = 38,529.43 : x
  2. Step 2: Convert to fraction form
    81,233.98/121,853.06 = 38,529.43/x
  3. Step 3: Cross multiply
    81,233.98x = 121,853.06 × 38,529.43
  4. Step 4: Simplify right side
    81,233.98x = 4,694,929,041.88
  5. Step 5: Solve for x
    x = 4,694,929,041.88/81,233.98
  6. Step 6: Final answer
    x = 57,795.14

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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.