Home / 51,261.20-76,891.84-21,671.36

Finding the Fourth Proportional to 51,261.20, 76,891.84 and 21,671.36

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Solution

The fourth proportional to 51,261.20, 76,891.84 and 21,671.36 is: 32,507.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,261.20 : 76,891.84 = 21,671.36 : x
  2. Step 2: Convert to fraction form
    51,261.20/76,891.84 = 21,671.36/x
  3. Step 3: Cross multiply
    51,261.20x = 76,891.84 × 21,671.36
  4. Step 4: Simplify right side
    51,261.20x = 1,666,350,745.70
  5. Step 5: Solve for x
    x = 1,666,350,745.70/51,261.20
  6. Step 6: Final answer
    x = 32,507.06

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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.