Home / 81,551.42-122,379.10-37,182.60

Finding the Fourth Proportional to 81,551.42, 122,379.10 and 37,182.60

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Solution

The fourth proportional to 81,551.42, 122,379.10 and 37,182.60 is: 55,797.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,551.42 : 122,379.10 = 37,182.60 : x
  2. Step 2: Convert to fraction form
    81,551.42/122,379.10 = 37,182.60/x
  3. Step 3: Cross multiply
    81,551.42x = 122,379.10 × 37,182.60
  4. Step 4: Simplify right side
    81,551.42x = 4,550,373,123.66
  5. Step 5: Solve for x
    x = 4,550,373,123.66/81,551.42
  6. Step 6: Final answer
    x = 55,797.60

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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.