Home / 68,870.94-95,031.27-40,190.46

Finding the Fourth Proportional to 68,870.94, 95,031.27 and 40,190.46

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Solution

The fourth proportional to 68,870.94, 95,031.27 and 40,190.46 is: 55,456.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,870.94 : 95,031.27 = 40,190.46 : x
  2. Step 2: Convert to fraction form
    68,870.94/95,031.27 = 40,190.46/x
  3. Step 3: Cross multiply
    68,870.94x = 95,031.27 × 40,190.46
  4. Step 4: Simplify right side
    68,870.94x = 3,819,350,455.68
  5. Step 5: Solve for x
    x = 3,819,350,455.68/68,870.94
  6. Step 6: Final answer
    x = 55,456.63

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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.