Home / 87,033.68-120,103.03-49,307.93

Finding the Fourth Proportional to 87,033.68, 120,103.03 and 49,307.93

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Solution

The fourth proportional to 87,033.68, 120,103.03 and 49,307.93 is: 68,042.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,033.68 : 120,103.03 = 49,307.93 : x
  2. Step 2: Convert to fraction form
    87,033.68/120,103.03 = 49,307.93/x
  3. Step 3: Cross multiply
    87,033.68x = 120,103.03 × 49,307.93
  4. Step 4: Simplify right side
    87,033.68x = 5,922,031,796.03
  5. Step 5: Solve for x
    x = 5,922,031,796.03/87,033.68
  6. Step 6: Final answer
    x = 68,042.99

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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.