Home / 81,588.30-122,430.96-44,147.61

Finding the Fourth Proportional to 81,588.30, 122,430.96 and 44,147.61

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Solution

The fourth proportional to 81,588.30, 122,430.96 and 44,147.61 is: 66,247.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,588.30 : 122,430.96 = 44,147.61 : x
  2. Step 2: Convert to fraction form
    81,588.30/122,430.96 = 44,147.61/x
  3. Step 3: Cross multiply
    81,588.30x = 122,430.96 × 44,147.61
  4. Step 4: Simplify right side
    81,588.30x = 5,405,034,274.01
  5. Step 5: Solve for x
    x = 5,405,034,274.01/81,588.30
  6. Step 6: Final answer
    x = 66,247.66

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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.