Home / 66,261.44-99,371.07-21,879.92

Finding the Fourth Proportional to 66,261.44, 99,371.07 and 21,879.92

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Solution

The fourth proportional to 66,261.44, 99,371.07 and 21,879.92 is: 32,812.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,261.44 : 99,371.07 = 21,879.92 : x
  2. Step 2: Convert to fraction form
    66,261.44/99,371.07 = 21,879.92/x
  3. Step 3: Cross multiply
    66,261.44x = 99,371.07 × 21,879.92
  4. Step 4: Simplify right side
    66,261.44x = 2,174,230,565.06
  5. Step 5: Solve for x
    x = 2,174,230,565.06/66,261.44
  6. Step 6: Final answer
    x = 32,812.91

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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.