Home / 87,922.80-121,388.49-67,741.38

Finding the Fourth Proportional to 87,922.80, 121,388.49 and 67,741.38

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Solution

The fourth proportional to 87,922.80, 121,388.49 and 67,741.38 is: 93,525.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,922.80 : 121,388.49 = 67,741.38 : x
  2. Step 2: Convert to fraction form
    87,922.80/121,388.49 = 67,741.38/x
  3. Step 3: Cross multiply
    87,922.80x = 121,388.49 × 67,741.38
  4. Step 4: Simplify right side
    87,922.80x = 8,223,023,828.72
  5. Step 5: Solve for x
    x = 8,223,023,828.72/87,922.80
  6. Step 6: Final answer
    x = 93,525.50

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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.