Home / 51,772.73-77,644.05-20,175.74

Finding the Fourth Proportional to 51,772.73, 77,644.05 and 20,175.74

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Solution

The fourth proportional to 51,772.73, 77,644.05 and 20,175.74 is: 30,257.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,772.73 : 77,644.05 = 20,175.74 : x
  2. Step 2: Convert to fraction form
    51,772.73/77,644.05 = 20,175.74/x
  3. Step 3: Cross multiply
    51,772.73x = 77,644.05 × 20,175.74
  4. Step 4: Simplify right side
    51,772.73x = 1,566,525,777.13
  5. Step 5: Solve for x
    x = 1,566,525,777.13/51,772.73
  6. Step 6: Final answer
    x = 30,257.74

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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.