Home / 87,904.88-121,309.26-49,665.19

Finding the Fourth Proportional to 87,904.88, 121,309.26 and 49,665.19

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Solution

The fourth proportional to 87,904.88, 121,309.26 and 49,665.19 is: 68,538.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,904.88 : 121,309.26 = 49,665.19 : x
  2. Step 2: Convert to fraction form
    87,904.88/121,309.26 = 49,665.19/x
  3. Step 3: Cross multiply
    87,904.88x = 121,309.26 × 49,665.19
  4. Step 4: Simplify right side
    87,904.88x = 6,024,847,446.66
  5. Step 5: Solve for x
    x = 6,024,847,446.66/87,904.88
  6. Step 6: Final answer
    x = 68,538.26

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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.