Home / 66,523.10-99,784.65-19,769.90

Finding the Fourth Proportional to 66,523.10, 99,784.65 and 19,769.90

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Solution

The fourth proportional to 66,523.10, 99,784.65 and 19,769.90 is: 29,654.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,523.10 : 99,784.65 = 19,769.90 : x
  2. Step 2: Convert to fraction form
    66,523.10/99,784.65 = 19,769.90/x
  3. Step 3: Cross multiply
    66,523.10x = 99,784.65 × 19,769.90
  4. Step 4: Simplify right side
    66,523.10x = 1,972,732,552.04
  5. Step 5: Solve for x
    x = 1,972,732,552.04/66,523.10
  6. Step 6: Final answer
    x = 29,654.85

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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.