Home / 81,278.05-112,161.11-45,467.29

Finding the Fourth Proportional to 81,278.05, 112,161.11 and 45,467.29

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Solution

The fourth proportional to 81,278.05, 112,161.11 and 45,467.29 is: 62,743.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,278.05 : 112,161.11 = 45,467.29 : x
  2. Step 2: Convert to fraction form
    81,278.05/112,161.11 = 45,467.29/x
  3. Step 3: Cross multiply
    81,278.05x = 112,161.11 × 45,467.29
  4. Step 4: Simplify right side
    81,278.05x = 5,099,661,627.96
  5. Step 5: Solve for x
    x = 5,099,661,627.96/81,278.05
  6. Step 6: Final answer
    x = 62,743.41

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1.5x scale

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.