Home / 74,369.85-102,629.79-40,377.66

Finding the Fourth Proportional to 74,369.85, 102,629.79 and 40,377.66

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Solution

The fourth proportional to 74,369.85, 102,629.79 and 40,377.66 is: 55,720.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,369.85 : 102,629.79 = 40,377.66 : x
  2. Step 2: Convert to fraction form
    74,369.85/102,629.79 = 40,377.66/x
  3. Step 3: Cross multiply
    74,369.85x = 102,629.79 × 40,377.66
  4. Step 4: Simplify right side
    74,369.85x = 4,143,951,302.77
  5. Step 5: Solve for x
    x = 4,143,951,302.77/74,369.85
  6. Step 6: Final answer
    x = 55,720.85

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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.