Home / 68,975.83-95,186.55-40,315.20

Finding the Fourth Proportional to 68,975.83, 95,186.55 and 40,315.20

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Solution

The fourth proportional to 68,975.83, 95,186.55 and 40,315.20 is: 55,634.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,975.83 : 95,186.55 = 40,315.20 : x
  2. Step 2: Convert to fraction form
    68,975.83/95,186.55 = 40,315.20/x
  3. Step 3: Cross multiply
    68,975.83x = 95,186.55 × 40,315.20
  4. Step 4: Simplify right side
    68,975.83x = 3,837,464,800.56
  5. Step 5: Solve for x
    x = 3,837,464,800.56/68,975.83
  6. Step 6: Final answer
    x = 55,634.92

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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.