Home / 87,076.13-120,176.39-51,269.45

Finding the Fourth Proportional to 87,076.13, 120,176.39 and 51,269.45

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Solution

The fourth proportional to 87,076.13, 120,176.39 and 51,269.45 is: 70,758.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,076.13 : 120,176.39 = 51,269.45 : x
  2. Step 2: Convert to fraction form
    87,076.13/120,176.39 = 51,269.45/x
  3. Step 3: Cross multiply
    87,076.13x = 120,176.39 × 51,269.45
  4. Step 4: Simplify right side
    87,076.13x = 6,161,376,945.58
  5. Step 5: Solve for x
    x = 6,161,376,945.58/87,076.13
  6. Step 6: Final answer
    x = 70,758.51

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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.