Home / 83,506.44-125,262.96-21,178.56

Finding the Fourth Proportional to 83,506.44, 125,262.96 and 21,178.56

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Solution

The fourth proportional to 83,506.44, 125,262.96 and 21,178.56 is: 31,768.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,506.44 : 125,262.96 = 21,178.56 : x
  2. Step 2: Convert to fraction form
    83,506.44/125,262.96 = 21,178.56/x
  3. Step 3: Cross multiply
    83,506.44x = 125,262.96 × 21,178.56
  4. Step 4: Simplify right side
    83,506.44x = 2,652,889,114.14
  5. Step 5: Solve for x
    x = 2,652,889,114.14/83,506.44
  6. Step 6: Final answer
    x = 31,768.68

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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.