Home / 81,416.70-122,096.25-38,717.10

Finding the Fourth Proportional to 81,416.70, 122,096.25 and 38,717.10

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Solution

The fourth proportional to 81,416.70, 122,096.25 and 38,717.10 is: 58,061.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,416.70 : 122,096.25 = 38,717.10 : x
  2. Step 2: Convert to fraction form
    81,416.70/122,096.25 = 38,717.10/x
  3. Step 3: Cross multiply
    81,416.70x = 122,096.25 × 38,717.10
  4. Step 4: Simplify right side
    81,416.70x = 4,727,212,720.88
  5. Step 5: Solve for x
    x = 4,727,212,720.88/81,416.70
  6. Step 6: Final answer
    x = 58,061.95

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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.