Home / 87,585.44-120,868.04-49,859.69

Finding the Fourth Proportional to 87,585.44, 120,868.04 and 49,859.69

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Solution

The fourth proportional to 87,585.44, 120,868.04 and 49,859.69 is: 68,806.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,585.44 : 120,868.04 = 49,859.69 : x
  2. Step 2: Convert to fraction form
    87,585.44/120,868.04 = 49,859.69/x
  3. Step 3: Cross multiply
    87,585.44x = 120,868.04 × 49,859.69
  4. Step 4: Simplify right side
    87,585.44x = 6,026,443,005.31
  5. Step 5: Solve for x
    x = 6,026,443,005.31/87,585.44
  6. Step 6: Final answer
    x = 68,806.45

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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.