Home / 206,581.77-309,821.62-56,814.79

Finding the Fourth Proportional to 206,581.77, 309,821.62 and 56,814.79

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Solution

The fourth proportional to 206,581.77, 309,821.62 and 56,814.79 is: 85,208.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,581.77 : 309,821.62 = 56,814.79 : x
  2. Step 2: Convert to fraction form
    206,581.77/309,821.62 = 56,814.79/x
  3. Step 3: Cross multiply
    206,581.77x = 309,821.62 × 56,814.79
  4. Step 4: Simplify right side
    206,581.77x = 17,602,450,277.76
  5. Step 5: Solve for x
    x = 17,602,450,277.76/206,581.77
  6. Step 6: Final answer
    x = 85,208.15

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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.