Home / 81,932.49-122,911.70-29,340.81

Finding the Fourth Proportional to 81,932.49, 122,911.70 and 29,340.81

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Solution

The fourth proportional to 81,932.49, 122,911.70 and 29,340.81 is: 44,015.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,932.49 : 122,911.70 = 29,340.81 : x
  2. Step 2: Convert to fraction form
    81,932.49/122,911.70 = 29,340.81/x
  3. Step 3: Cross multiply
    81,932.49x = 122,911.70 × 29,340.81
  4. Step 4: Simplify right side
    81,932.49x = 3,606,328,689.77
  5. Step 5: Solve for x
    x = 3,606,328,689.77/81,932.49
  6. Step 6: Final answer
    x = 44,015.86

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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.