Home / 51,932.80-77,906.88-20,767.36

Finding the Fourth Proportional to 51,932.80, 77,906.88 and 20,767.36

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Solution

The fourth proportional to 51,932.80, 77,906.88 and 20,767.36 is: 31,154.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,932.80 : 77,906.88 = 20,767.36 : x
  2. Step 2: Convert to fraction form
    51,932.80/77,906.88 = 20,767.36/x
  3. Step 3: Cross multiply
    51,932.80x = 77,906.88 × 20,767.36
  4. Step 4: Simplify right side
    51,932.80x = 1,617,920,223.44
  5. Step 5: Solve for x
    x = 1,617,920,223.44/51,932.80
  6. Step 6: Final answer
    x = 31,154.11

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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.