Home / 84,540.07-126,865.47-31,949.56

Finding the Fourth Proportional to 84,540.07, 126,865.47 and 31,949.56

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Solution

The fourth proportional to 84,540.07, 126,865.47 and 31,949.56 is: 47,945.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,540.07 : 126,865.47 = 31,949.56 : x
  2. Step 2: Convert to fraction form
    84,540.07/126,865.47 = 31,949.56/x
  3. Step 3: Cross multiply
    84,540.07x = 126,865.47 × 31,949.56
  4. Step 4: Simplify right side
    84,540.07x = 4,053,295,311.37
  5. Step 5: Solve for x
    x = 4,053,295,311.37/84,540.07
  6. Step 6: Final answer
    x = 47,945.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.