Home / 66,251.30-99,367.20-21,879.50

Finding the Fourth Proportional to 66,251.30, 99,367.20 and 21,879.50

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Solution

The fourth proportional to 66,251.30, 99,367.20 and 21,879.50 is: 32,816.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,251.30 : 99,367.20 = 21,879.50 : x
  2. Step 2: Convert to fraction form
    66,251.30/99,367.20 = 21,879.50/x
  3. Step 3: Cross multiply
    66,251.30x = 99,367.20 × 21,879.50
  4. Step 4: Simplify right side
    66,251.30x = 2,174,104,155.56
  5. Step 5: Solve for x
    x = 2,174,104,155.56/66,251.30
  6. Step 6: Final answer
    x = 32,816.03

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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.