Home / 74,183.47-102,372.35-40,191.11

Finding the Fourth Proportional to 74,183.47, 102,372.35 and 40,191.11

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Solution

The fourth proportional to 74,183.47, 102,372.35 and 40,191.11 is: 55,463.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,183.47 : 102,372.35 = 40,191.11 : x
  2. Step 2: Convert to fraction form
    74,183.47/102,372.35 = 40,191.11/x
  3. Step 3: Cross multiply
    74,183.47x = 102,372.35 × 40,191.11
  4. Step 4: Simplify right side
    74,183.47x = 4,114,458,379.81
  5. Step 5: Solve for x
    x = 4,114,458,379.81/74,183.47
  6. Step 6: Final answer
    x = 55,463.28

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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.