Home / 51,920.20-77,883.06-16,857.28

Finding the Fourth Proportional to 51,920.20, 77,883.06 and 16,857.28

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Solution

The fourth proportional to 51,920.20, 77,883.06 and 16,857.28 is: 25,286.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,920.20 : 77,883.06 = 16,857.28 : x
  2. Step 2: Convert to fraction form
    51,920.20/77,883.06 = 16,857.28/x
  3. Step 3: Cross multiply
    51,920.20x = 77,883.06 × 16,857.28
  4. Step 4: Simplify right side
    51,920.20x = 1,312,896,549.68
  5. Step 5: Solve for x
    x = 1,312,896,549.68/51,920.20
  6. Step 6: Final answer
    x = 25,286.82

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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.