Home / 74,906.82-103,370.85-40,915.32

Finding the Fourth Proportional to 74,906.82, 103,370.85 and 40,915.32

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Solution

The fourth proportional to 74,906.82, 103,370.85 and 40,915.32 is: 56,462.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,906.82 : 103,370.85 = 40,915.32 : x
  2. Step 2: Convert to fraction form
    74,906.82/103,370.85 = 40,915.32/x
  3. Step 3: Cross multiply
    74,906.82x = 103,370.85 × 40,915.32
  4. Step 4: Simplify right side
    74,906.82x = 4,229,451,406.42
  5. Step 5: Solve for x
    x = 4,229,451,406.42/74,906.82
  6. Step 6: Final answer
    x = 56,462.83

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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.