Home / 81,586.44-122,328.66-34,188.72

Finding the Fourth Proportional to 81,586.44, 122,328.66 and 34,188.72

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Solution

The fourth proportional to 81,586.44, 122,328.66 and 34,188.72 is: 51,261.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,586.44 : 122,328.66 = 34,188.72 : x
  2. Step 2: Convert to fraction form
    81,586.44/122,328.66 = 34,188.72/x
  3. Step 3: Cross multiply
    81,586.44x = 122,328.66 × 34,188.72
  4. Step 4: Simplify right side
    81,586.44x = 4,182,260,304.72
  5. Step 5: Solve for x
    x = 4,182,260,304.72/81,586.44
  6. Step 6: Final answer
    x = 51,261.71

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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.