Home / 68,464.32-102,650.40-35,142.72

Finding the Fourth Proportional to 68,464.32, 102,650.40 and 35,142.72

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Solution

The fourth proportional to 68,464.32, 102,650.40 and 35,142.72 is: 52,690.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,464.32 : 102,650.40 = 35,142.72 : x
  2. Step 2: Convert to fraction form
    68,464.32/102,650.40 = 35,142.72/x
  3. Step 3: Cross multiply
    68,464.32x = 102,650.40 × 35,142.72
  4. Step 4: Simplify right side
    68,464.32x = 3,607,414,265.09
  5. Step 5: Solve for x
    x = 3,607,414,265.09/68,464.32
  6. Step 6: Final answer
    x = 52,690.43

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.