Home / 68,165.15-102,176.64-40,062.20

Finding the Fourth Proportional to 68,165.15, 102,176.64 and 40,062.20

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Solution

The fourth proportional to 68,165.15, 102,176.64 and 40,062.20 is: 60,051.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,165.15 : 102,176.64 = 40,062.20 : x
  2. Step 2: Convert to fraction form
    68,165.15/102,176.64 = 40,062.20/x
  3. Step 3: Cross multiply
    68,165.15x = 102,176.64 × 40,062.20
  4. Step 4: Simplify right side
    68,165.15x = 4,093,420,476.12
  5. Step 5: Solve for x
    x = 4,093,420,476.12/68,165.15
  6. Step 6: Final answer
    x = 60,051.52

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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.