Home / 206,528.12-309,735.85-56,732.79

Finding the Fourth Proportional to 206,528.12, 309,735.85 and 56,732.79

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Solution

The fourth proportional to 206,528.12, 309,735.85 and 56,732.79 is: 85,083.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,528.12 : 309,735.85 = 56,732.79 : x
  2. Step 2: Convert to fraction form
    206,528.12/309,735.85 = 56,732.79/x
  3. Step 3: Cross multiply
    206,528.12x = 309,735.85 × 56,732.79
  4. Step 4: Simplify right side
    206,528.12x = 17,572,178,933.52
  5. Step 5: Solve for x
    x = 17,572,178,933.52/206,528.12
  6. Step 6: Final answer
    x = 85,083.71

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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.