Home / 87,855.90-121,240.63-47,568.83

Finding the Fourth Proportional to 87,855.90, 121,240.63 and 47,568.83

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Solution

The fourth proportional to 87,855.90, 121,240.63 and 47,568.83 is: 65,644.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,855.90 : 121,240.63 = 47,568.83 : x
  2. Step 2: Convert to fraction form
    87,855.90/121,240.63 = 47,568.83/x
  3. Step 3: Cross multiply
    87,855.90x = 121,240.63 × 47,568.83
  4. Step 4: Simplify right side
    87,855.90x = 5,767,275,101.74
  5. Step 5: Solve for x
    x = 5,767,275,101.74/87,855.90
  6. Step 6: Final answer
    x = 65,644.71

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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.