Home / 81,304.85-121,975.20-24,376.49

Finding the Fourth Proportional to 81,304.85, 121,975.20 and 24,376.49

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Solution

The fourth proportional to 81,304.85, 121,975.20 and 24,376.49 is: 36,570.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,304.85 : 121,975.20 = 24,376.49 : x
  2. Step 2: Convert to fraction form
    81,304.85/121,975.20 = 24,376.49/x
  3. Step 3: Cross multiply
    81,304.85x = 121,975.20 × 24,376.49
  4. Step 4: Simplify right side
    81,304.85x = 2,973,327,243.05
  5. Step 5: Solve for x
    x = 2,973,327,243.05/81,304.85
  6. Step 6: Final answer
    x = 36,570.11

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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.