Home / 51,845.88-77,781.12-16,785.48

Finding the Fourth Proportional to 51,845.88, 77,781.12 and 16,785.48

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Solution

The fourth proportional to 51,845.88, 77,781.12 and 16,785.48 is: 25,182.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,845.88 : 77,781.12 = 16,785.48 : x
  2. Step 2: Convert to fraction form
    51,845.88/77,781.12 = 16,785.48/x
  3. Step 3: Cross multiply
    51,845.88x = 77,781.12 × 16,785.48
  4. Step 4: Simplify right side
    51,845.88x = 1,305,593,434.14
  5. Step 5: Solve for x
    x = 1,305,593,434.14/51,845.88
  6. Step 6: Final answer
    x = 25,182.20

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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.