Home / 74,485.38-102,791.85-40,496.15

Finding the Fourth Proportional to 74,485.38, 102,791.85 and 40,496.15

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Solution

The fourth proportional to 74,485.38, 102,791.85 and 40,496.15 is: 55,885.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,485.38 : 102,791.85 = 40,496.15 : x
  2. Step 2: Convert to fraction form
    74,485.38/102,791.85 = 40,496.15/x
  3. Step 3: Cross multiply
    74,485.38x = 102,791.85 × 40,496.15
  4. Step 4: Simplify right side
    74,485.38x = 4,162,674,433.36
  5. Step 5: Solve for x
    x = 4,162,674,433.36/74,485.38
  6. Step 6: Final answer
    x = 55,885.79

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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.