Home / 87,608.50-120,921.33-49,904.98

Finding the Fourth Proportional to 87,608.50, 120,921.33 and 49,904.98

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Solution

The fourth proportional to 87,608.50, 120,921.33 and 49,904.98 is: 68,881.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,608.50 : 120,921.33 = 49,904.98 : x
  2. Step 2: Convert to fraction form
    87,608.50/120,921.33 = 49,904.98/x
  3. Step 3: Cross multiply
    87,608.50x = 120,921.33 × 49,904.98
  4. Step 4: Simplify right side
    87,608.50x = 6,034,576,555.22
  5. Step 5: Solve for x
    x = 6,034,576,555.22/87,608.50
  6. Step 6: Final answer
    x = 68,881.18

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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.