Home / 75,872.98-113,821.80-28,491.73

Finding the Fourth Proportional to 75,872.98, 113,821.80 and 28,491.73

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Solution

The fourth proportional to 75,872.98, 113,821.80 and 28,491.73 is: 42,742.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,872.98 : 113,821.80 = 28,491.73 : x
  2. Step 2: Convert to fraction form
    75,872.98/113,821.80 = 28,491.73/x
  3. Step 3: Cross multiply
    75,872.98x = 113,821.80 × 28,491.73
  4. Step 4: Simplify right side
    75,872.98x = 3,242,979,993.71
  5. Step 5: Solve for x
    x = 3,242,979,993.71/75,872.98
  6. Step 6: Final answer
    x = 42,742.23

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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.