Home / 87,717.94-121,042.20-49,483.51

Finding the Fourth Proportional to 87,717.94, 121,042.20 and 49,483.51

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Solution

The fourth proportional to 87,717.94, 121,042.20 and 49,483.51 is: 68,282.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,717.94 : 121,042.20 = 49,483.51 : x
  2. Step 2: Convert to fraction form
    87,717.94/121,042.20 = 49,483.51/x
  3. Step 3: Cross multiply
    87,717.94x = 121,042.20 × 49,483.51
  4. Step 4: Simplify right side
    87,717.94x = 5,989,592,914.12
  5. Step 5: Solve for x
    x = 5,989,592,914.12/87,717.94
  6. Step 6: Final answer
    x = 68,282.42

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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.