Home / 51,418.50-77,133.87-18,131.66

Finding the Fourth Proportional to 51,418.50, 77,133.87 and 18,131.66

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Solution

The fourth proportional to 51,418.50, 77,133.87 and 18,131.66 is: 27,199.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,418.50 : 77,133.87 = 18,131.66 : x
  2. Step 2: Convert to fraction form
    51,418.50/77,133.87 = 18,131.66/x
  3. Step 3: Cross multiply
    51,418.50x = 77,133.87 × 18,131.66
  4. Step 4: Simplify right side
    51,418.50x = 1,398,565,105.32
  5. Step 5: Solve for x
    x = 1,398,565,105.32/51,418.50
  6. Step 6: Final answer
    x = 27,199.65

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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.