Home / 80,825.36-111,542.43-45,015.36

Finding the Fourth Proportional to 80,825.36, 111,542.43 and 45,015.36

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Solution

The fourth proportional to 80,825.36, 111,542.43 and 45,015.36 is: 62,123.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,825.36 : 111,542.43 = 45,015.36 : x
  2. Step 2: Convert to fraction form
    80,825.36/111,542.43 = 45,015.36/x
  3. Step 3: Cross multiply
    80,825.36x = 111,542.43 × 45,015.36
  4. Step 4: Simplify right side
    80,825.36x = 5,021,122,641.72
  5. Step 5: Solve for x
    x = 5,021,122,641.72/80,825.36
  6. Step 6: Final answer
    x = 62,123.11

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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.