Home / 87,741.81-121,098.58-49,512.19

Finding the Fourth Proportional to 87,741.81, 121,098.58 and 49,512.19

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Solution

The fourth proportional to 87,741.81, 121,098.58 and 49,512.19 is: 68,335.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,741.81 : 121,098.58 = 49,512.19 : x
  2. Step 2: Convert to fraction form
    87,741.81/121,098.58 = 49,512.19/x
  3. Step 3: Cross multiply
    87,741.81x = 121,098.58 × 49,512.19
  4. Step 4: Simplify right side
    87,741.81x = 5,995,855,901.69
  5. Step 5: Solve for x
    x = 5,995,855,901.69/87,741.81
  6. Step 6: Final answer
    x = 68,335.22

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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.