Home / 40,138.43-55,338.51-34,533.38

Finding the Fourth Proportional to 40,138.43, 55,338.51 and 34,533.38

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Solution

The fourth proportional to 40,138.43, 55,338.51 and 34,533.38 is: 47,610.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,138.43 : 55,338.51 = 34,533.38 : x
  2. Step 2: Convert to fraction form
    40,138.43/55,338.51 = 34,533.38/x
  3. Step 3: Cross multiply
    40,138.43x = 55,338.51 × 34,533.38
  4. Step 4: Simplify right side
    40,138.43x = 1,911,025,517.77
  5. Step 5: Solve for x
    x = 1,911,025,517.77/40,138.43
  6. Step 6: Final answer
    x = 47,610.87

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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.