Home / 87,854.90-121,239.99-47,568.33

Finding the Fourth Proportional to 87,854.90, 121,239.99 and 47,568.33

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Solution

The fourth proportional to 87,854.90, 121,239.99 and 47,568.33 is: 65,644.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,854.90 : 121,239.99 = 47,568.33 : x
  2. Step 2: Convert to fraction form
    87,854.90/121,239.99 = 47,568.33/x
  3. Step 3: Cross multiply
    87,854.90x = 121,239.99 × 47,568.33
  4. Step 4: Simplify right side
    87,854.90x = 5,767,183,853.52
  5. Step 5: Solve for x
    x = 5,767,183,853.52/87,854.90
  6. Step 6: Final answer
    x = 65,644.42

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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.