Home / 88,182.72-121,694.88-50,469.12

Finding the Fourth Proportional to 88,182.72, 121,694.88 and 50,469.12

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Solution

The fourth proportional to 88,182.72, 121,694.88 and 50,469.12 is: 69,648.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,182.72 : 121,694.88 = 50,469.12 : x
  2. Step 2: Convert to fraction form
    88,182.72/121,694.88 = 50,469.12/x
  3. Step 3: Cross multiply
    88,182.72x = 121,694.88 × 50,469.12
  4. Step 4: Simplify right side
    88,182.72x = 6,141,833,502.11
  5. Step 5: Solve for x
    x = 6,141,833,502.11/88,182.72
  6. Step 6: Final answer
    x = 69,648.95

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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.