Home / 66,518.08-99,781.44-19,767.04

Finding the Fourth Proportional to 66,518.08, 99,781.44 and 19,767.04

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Solution

The fourth proportional to 66,518.08, 99,781.44 and 19,767.04 is: 29,651.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,518.08 : 99,781.44 = 19,767.04 : x
  2. Step 2: Convert to fraction form
    66,518.08/99,781.44 = 19,767.04/x
  3. Step 3: Cross multiply
    66,518.08x = 99,781.44 × 19,767.04
  4. Step 4: Simplify right side
    66,518.08x = 1,972,383,715.74
  5. Step 5: Solve for x
    x = 1,972,383,715.74/66,518.08
  6. Step 6: Final answer
    x = 29,651.84

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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.