Home / 87,113.04-120,201.42-51,310.18

Finding the Fourth Proportional to 87,113.04, 120,201.42 and 51,310.18

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Solution

The fourth proportional to 87,113.04, 120,201.42 and 51,310.18 is: 70,799.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,113.04 : 120,201.42 = 51,310.18 : x
  2. Step 2: Convert to fraction form
    87,113.04/120,201.42 = 51,310.18/x
  3. Step 3: Cross multiply
    87,113.04x = 120,201.42 × 51,310.18
  4. Step 4: Simplify right side
    87,113.04x = 6,167,555,767.17
  5. Step 5: Solve for x
    x = 6,167,555,767.17/87,113.04
  6. Step 6: Final answer
    x = 70,799.46

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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.