Home / 80,828.64-111,542.76-45,016.56

Finding the Fourth Proportional to 80,828.64, 111,542.76 and 45,016.56

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Solution

The fourth proportional to 80,828.64, 111,542.76 and 45,016.56 is: 62,122.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,828.64 : 111,542.76 = 45,016.56 : x
  2. Step 2: Convert to fraction form
    80,828.64/111,542.76 = 45,016.56/x
  3. Step 3: Cross multiply
    80,828.64x = 111,542.76 × 45,016.56
  4. Step 4: Simplify right side
    80,828.64x = 5,021,271,348.11
  5. Step 5: Solve for x
    x = 5,021,271,348.11/80,828.64
  6. Step 6: Final answer
    x = 62,122.43

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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.