Home / 81,249.56-112,124.10-45,439.46

Finding the Fourth Proportional to 81,249.56, 112,124.10 and 45,439.46

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Solution

The fourth proportional to 81,249.56, 112,124.10 and 45,439.46 is: 62,706.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,249.56 : 112,124.10 = 45,439.46 : x
  2. Step 2: Convert to fraction form
    81,249.56/112,124.10 = 45,439.46/x
  3. Step 3: Cross multiply
    81,249.56x = 112,124.10 × 45,439.46
  4. Step 4: Simplify right side
    81,249.56x = 5,094,858,556.99
  5. Step 5: Solve for x
    x = 5,094,858,556.99/81,249.56
  6. Step 6: Final answer
    x = 62,706.29

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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.