Home / 74,857.94-103,321.33-49,368.91

Finding the Fourth Proportional to 74,857.94, 103,321.33 and 49,368.91

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Solution

The fourth proportional to 74,857.94, 103,321.33 and 49,368.91 is: 68,140.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,857.94 : 103,321.33 = 49,368.91 : x
  2. Step 2: Convert to fraction form
    74,857.94/103,321.33 = 49,368.91/x
  3. Step 3: Cross multiply
    74,857.94x = 103,321.33 × 49,368.91
  4. Step 4: Simplify right side
    74,857.94x = 5,100,861,441.85
  5. Step 5: Solve for x
    x = 5,100,861,441.85/74,857.94
  6. Step 6: Final answer
    x = 68,140.55

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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.