Home / 81,512.85-122,269.67-37,108.53

Finding the Fourth Proportional to 81,512.85, 122,269.67 and 37,108.53

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Solution

The fourth proportional to 81,512.85, 122,269.67 and 37,108.53 is: 55,662.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,512.85 : 122,269.67 = 37,108.53 : x
  2. Step 2: Convert to fraction form
    81,512.85/122,269.67 = 37,108.53/x
  3. Step 3: Cross multiply
    81,512.85x = 122,269.67 × 37,108.53
  4. Step 4: Simplify right side
    81,512.85x = 4,537,248,115.73
  5. Step 5: Solve for x
    x = 4,537,248,115.73/81,512.85
  6. Step 6: Final answer
    x = 55,662.98

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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.