Home / 51,542.62-77,346.78-51,120.76

Finding the Fourth Proportional to 51,542.62, 77,346.78 and 51,120.76

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Solution

The fourth proportional to 51,542.62, 77,346.78 and 51,120.76 is: 76,713.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,542.62 : 77,346.78 = 51,120.76 : x
  2. Step 2: Convert to fraction form
    51,542.62/77,346.78 = 51,120.76/x
  3. Step 3: Cross multiply
    51,542.62x = 77,346.78 × 51,120.76
  4. Step 4: Simplify right side
    51,542.62x = 3,954,026,177.15
  5. Step 5: Solve for x
    x = 3,954,026,177.15/51,542.62
  6. Step 6: Final answer
    x = 76,713.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.