Home / 65,202.09-89,992.89-39,716.85

Finding the Fourth Proportional to 65,202.09, 89,992.89 and 39,716.85

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Solution

The fourth proportional to 65,202.09, 89,992.89 and 39,716.85 is: 54,817.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,202.09 : 89,992.89 = 39,716.85 : x
  2. Step 2: Convert to fraction form
    65,202.09/89,992.89 = 39,716.85/x
  3. Step 3: Cross multiply
    65,202.09x = 89,992.89 × 39,716.85
  4. Step 4: Simplify right side
    65,202.09x = 3,574,234,113.20
  5. Step 5: Solve for x
    x = 3,574,234,113.20/65,202.09
  6. Step 6: Final answer
    x = 54,817.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.