Home / 51,516-77,306.46-21,933.78

Finding the Fourth Proportional to 51,516, 77,306.46 and 21,933.78

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Solution

The fourth proportional to 51,516, 77,306.46 and 21,933.78 is: 32,914.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,516 : 77,306.46 = 21,933.78 : x
  2. Step 2: Convert to fraction form
    51,516/77,306.46 = 21,933.78/x
  3. Step 3: Cross multiply
    51,516x = 77,306.46 × 21,933.78
  4. Step 4: Simplify right side
    51,516x = 1,695,622,886.22
  5. Step 5: Solve for x
    x = 1,695,622,886.22/51,516
  6. Step 6: Final answer
    x = 32,914.49

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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.