Home / 87,113.41-120,201.93-51,310.55

Finding the Fourth Proportional to 87,113.41, 120,201.93 and 51,310.55

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Solution

The fourth proportional to 87,113.41, 120,201.93 and 51,310.55 is: 70,799.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,113.41 : 120,201.93 = 51,310.55 : x
  2. Step 2: Convert to fraction form
    87,113.41/120,201.93 = 51,310.55/x
  3. Step 3: Cross multiply
    87,113.41x = 120,201.93 × 51,310.55
  4. Step 4: Simplify right side
    87,113.41x = 6,167,627,139.36
  5. Step 5: Solve for x
    x = 6,167,627,139.36/87,113.41
  6. Step 6: Final answer
    x = 70,799.97

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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.