Home / 66,520.08-99,784.44-19,769.04

Finding the Fourth Proportional to 66,520.08, 99,784.44 and 19,769.04

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Solution

The fourth proportional to 66,520.08, 99,784.44 and 19,769.04 is: 29,654.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,520.08 : 99,784.44 = 19,769.04 : x
  2. Step 2: Convert to fraction form
    66,520.08/99,784.44 = 19,769.04/x
  3. Step 3: Cross multiply
    66,520.08x = 99,784.44 × 19,769.04
  4. Step 4: Simplify right side
    66,520.08x = 1,972,642,585.74
  5. Step 5: Solve for x
    x = 1,972,642,585.74/66,520.08
  6. Step 6: Final answer
    x = 29,654.84

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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.