Home / 51,750.05-77,428.24-31,979.57

Finding the Fourth Proportional to 51,750.05, 77,428.24 and 31,979.57

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Solution

The fourth proportional to 51,750.05, 77,428.24 and 31,979.57 is: 47,847.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,750.05 : 77,428.24 = 31,979.57 : x
  2. Step 2: Convert to fraction form
    51,750.05/77,428.24 = 31,979.57/x
  3. Step 3: Cross multiply
    51,750.05x = 77,428.24 × 31,979.57
  4. Step 4: Simplify right side
    51,750.05x = 2,476,121,353.97
  5. Step 5: Solve for x
    x = 2,476,121,353.97/51,750.05
  6. Step 6: Final answer
    x = 47,847.71

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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.