Home / 83,905.89-125,821.17-24,720.81

Finding the Fourth Proportional to 83,905.89, 125,821.17 and 24,720.81

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Solution

The fourth proportional to 83,905.89, 125,821.17 and 24,720.81 is: 37,070.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,905.89 : 125,821.17 = 24,720.81 : x
  2. Step 2: Convert to fraction form
    83,905.89/125,821.17 = 24,720.81/x
  3. Step 3: Cross multiply
    83,905.89x = 125,821.17 × 24,720.81
  4. Step 4: Simplify right side
    83,905.89x = 3,110,401,237.55
  5. Step 5: Solve for x
    x = 3,110,401,237.55/83,905.89
  6. Step 6: Final answer
    x = 37,070.12

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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.