Home / 87,976.08-121,405.50-49,735.04

Finding the Fourth Proportional to 87,976.08, 121,405.50 and 49,735.04

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Solution

The fourth proportional to 87,976.08, 121,405.50 and 49,735.04 is: 68,633.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,976.08 : 121,405.50 = 49,735.04 : x
  2. Step 2: Convert to fraction form
    87,976.08/121,405.50 = 49,735.04/x
  3. Step 3: Cross multiply
    87,976.08x = 121,405.50 × 49,735.04
  4. Step 4: Simplify right side
    87,976.08x = 6,038,106,791.69
  5. Step 5: Solve for x
    x = 6,038,106,791.69/87,976.08
  6. Step 6: Final answer
    x = 68,633.51

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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.