Home / 45,015.75-62,121.75-25,143.75

Finding the Fourth Proportional to 45,015.75, 62,121.75 and 25,143.75

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Solution

The fourth proportional to 45,015.75, 62,121.75 and 25,143.75 is: 34,698.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,015.75 : 62,121.75 = 25,143.75 : x
  2. Step 2: Convert to fraction form
    45,015.75/62,121.75 = 25,143.75/x
  3. Step 3: Cross multiply
    45,015.75x = 62,121.75 × 25,143.75
  4. Step 4: Simplify right side
    45,015.75x = 1,561,973,751.56
  5. Step 5: Solve for x
    x = 1,561,973,751.56/45,015.75
  6. Step 6: Final answer
    x = 34,698.38

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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.