Home / 81,441.09-122,156.96-48,371.21

Finding the Fourth Proportional to 81,441.09, 122,156.96 and 48,371.21

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Solution

The fourth proportional to 81,441.09, 122,156.96 and 48,371.21 is: 72,554.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,441.09 : 122,156.96 = 48,371.21 : x
  2. Step 2: Convert to fraction form
    81,441.09/122,156.96 = 48,371.21/x
  3. Step 3: Cross multiply
    81,441.09x = 122,156.96 × 48,371.21
  4. Step 4: Simplify right side
    81,441.09x = 5,908,879,723.27
  5. Step 5: Solve for x
    x = 5,908,879,723.27/81,441.09
  6. Step 6: Final answer
    x = 72,554.04

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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.