Home / 87,894.29-121,273.13-52,078.12

Finding the Fourth Proportional to 87,894.29, 121,273.13 and 52,078.12

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Solution

The fourth proportional to 87,894.29, 121,273.13 and 52,078.12 is: 71,855.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,894.29 : 121,273.13 = 52,078.12 : x
  2. Step 2: Convert to fraction form
    87,894.29/121,273.13 = 52,078.12/x
  3. Step 3: Cross multiply
    87,894.29x = 121,273.13 × 52,078.12
  4. Step 4: Simplify right side
    87,894.29x = 6,315,675,750.16
  5. Step 5: Solve for x
    x = 6,315,675,750.16/87,894.29
  6. Step 6: Final answer
    x = 71,855.36

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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.