Home / 85,199.20-117,574.90-49,409.97

Finding the Fourth Proportional to 85,199.20, 117,574.90 and 49,409.97

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Solution

The fourth proportional to 85,199.20, 117,574.90 and 49,409.97 is: 68,185.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,199.20 : 117,574.90 = 49,409.97 : x
  2. Step 2: Convert to fraction form
    85,199.20/117,574.90 = 49,409.97/x
  3. Step 3: Cross multiply
    85,199.20x = 117,574.90 × 49,409.97
  4. Step 4: Simplify right side
    85,199.20x = 5,809,372,281.75
  5. Step 5: Solve for x
    x = 5,809,372,281.75/85,199.20
  6. Step 6: Final answer
    x = 68,185.76

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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.