Home / 40,367.90-55,723.20-30,325.47

Finding the Fourth Proportional to 40,367.90, 55,723.20 and 30,325.47

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Solution

The fourth proportional to 40,367.90, 55,723.20 and 30,325.47 is: 41,860.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,367.90 : 55,723.20 = 30,325.47 : x
  2. Step 2: Convert to fraction form
    40,367.90/55,723.20 = 30,325.47/x
  3. Step 3: Cross multiply
    40,367.90x = 55,723.20 × 30,325.47
  4. Step 4: Simplify right side
    40,367.90x = 1,689,831,799.66
  5. Step 5: Solve for x
    x = 1,689,831,799.66/40,367.90
  6. Step 6: Final answer
    x = 41,860.79

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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.