Home / 87,113.23-120,201.67-51,310.37

Finding the Fourth Proportional to 87,113.23, 120,201.67 and 51,310.37

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Solution

The fourth proportional to 87,113.23, 120,201.67 and 51,310.37 is: 70,799.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,113.23 : 120,201.67 = 51,310.37 : x
  2. Step 2: Convert to fraction form
    87,113.23/120,201.67 = 51,310.37/x
  3. Step 3: Cross multiply
    87,113.23x = 120,201.67 × 51,310.37
  4. Step 4: Simplify right side
    87,113.23x = 6,167,592,334.55
  5. Step 5: Solve for x
    x = 6,167,592,334.55/87,113.23
  6. Step 6: Final answer
    x = 70,799.72

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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.