Home / 87,707.52-121,036.14-49,982.04

Finding the Fourth Proportional to 87,707.52, 121,036.14 and 49,982.04

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Solution

The fourth proportional to 87,707.52, 121,036.14 and 49,982.04 is: 68,975.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,707.52 : 121,036.14 = 49,982.04 : x
  2. Step 2: Convert to fraction form
    87,707.52/121,036.14 = 49,982.04/x
  3. Step 3: Cross multiply
    87,707.52x = 121,036.14 × 49,982.04
  4. Step 4: Simplify right side
    87,707.52x = 6,049,633,190.93
  5. Step 5: Solve for x
    x = 6,049,633,190.93/87,707.52
  6. Step 6: Final answer
    x = 68,975.08

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1.5x scale

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.