Home / 87,553.78-120,824.70-49,828.02

Finding the Fourth Proportional to 87,553.78, 120,824.70 and 49,828.02

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Solution

The fourth proportional to 87,553.78, 120,824.70 and 49,828.02 is: 68,762.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,553.78 : 120,824.70 = 49,828.02 : x
  2. Step 2: Convert to fraction form
    87,553.78/120,824.70 = 49,828.02/x
  3. Step 3: Cross multiply
    87,553.78x = 120,824.70 × 49,828.02
  4. Step 4: Simplify right side
    87,553.78x = 6,020,455,568.09
  5. Step 5: Solve for x
    x = 6,020,455,568.09/87,553.78
  6. Step 6: Final answer
    x = 68,762.94

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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.