Home / 81,163.11-112,002.94-45,353.41

Finding the Fourth Proportional to 81,163.11, 112,002.94 and 45,353.41

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Solution

The fourth proportional to 81,163.11, 112,002.94 and 45,353.41 is: 62,586.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,163.11 : 112,002.94 = 45,353.41 : x
  2. Step 2: Convert to fraction form
    81,163.11/112,002.94 = 45,353.41/x
  3. Step 3: Cross multiply
    81,163.11x = 112,002.94 × 45,353.41
  4. Step 4: Simplify right side
    81,163.11x = 5,079,715,510.69
  5. Step 5: Solve for x
    x = 5,079,715,510.69/81,163.11
  6. Step 6: Final answer
    x = 62,586.51

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.