Home / 72,195.26-99,626.54-39,927.75

Finding the Fourth Proportional to 72,195.26, 99,626.54 and 39,927.75

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Solution

The fourth proportional to 72,195.26, 99,626.54 and 39,927.75 is: 55,098.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,195.26 : 99,626.54 = 39,927.75 : x
  2. Step 2: Convert to fraction form
    72,195.26/99,626.54 = 39,927.75/x
  3. Step 3: Cross multiply
    72,195.26x = 99,626.54 × 39,927.75
  4. Step 4: Simplify right side
    72,195.26x = 3,977,863,382.85
  5. Step 5: Solve for x
    x = 3,977,863,382.85/72,195.26
  6. Step 6: Final answer
    x = 55,098.68

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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.