Home / 80,721.67-121,100.93-24,569.74

Finding the Fourth Proportional to 80,721.67, 121,100.93 and 24,569.74

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Solution

The fourth proportional to 80,721.67, 121,100.93 and 24,569.74 is: 36,860.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,721.67 : 121,100.93 = 24,569.74 : x
  2. Step 2: Convert to fraction form
    80,721.67/121,100.93 = 24,569.74/x
  3. Step 3: Cross multiply
    80,721.67x = 121,100.93 × 24,569.74
  4. Step 4: Simplify right side
    80,721.67x = 2,975,418,363.86
  5. Step 5: Solve for x
    x = 2,975,418,363.86/80,721.67
  6. Step 6: Final answer
    x = 36,860.22

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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.