Home / 87,549.84-120,821.80-49,823.28

Finding the Fourth Proportional to 87,549.84, 120,821.80 and 49,823.28

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Solution

The fourth proportional to 87,549.84, 120,821.80 and 49,823.28 is: 68,757.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,549.84 : 120,821.80 = 49,823.28 : x
  2. Step 2: Convert to fraction form
    87,549.84/120,821.80 = 49,823.28/x
  3. Step 3: Cross multiply
    87,549.84x = 120,821.80 × 49,823.28
  4. Step 4: Simplify right side
    87,549.84x = 6,019,738,371.50
  5. Step 5: Solve for x
    x = 6,019,738,371.50/87,549.84
  6. Step 6: Final answer
    x = 68,757.85

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.