Home / 74,181.11-102,369.79-40,190.45

Finding the Fourth Proportional to 74,181.11, 102,369.79 and 40,190.45

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Solution

The fourth proportional to 74,181.11, 102,369.79 and 40,190.45 is: 55,462.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,181.11 : 102,369.79 = 40,190.45 : x
  2. Step 2: Convert to fraction form
    74,181.11/102,369.79 = 40,190.45/x
  3. Step 3: Cross multiply
    74,181.11x = 102,369.79 × 40,190.45
  4. Step 4: Simplify right side
    74,181.11x = 4,114,287,314.18
  5. Step 5: Solve for x
    x = 4,114,287,314.18/74,181.11
  6. Step 6: Final answer
    x = 55,462.73

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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.