Home / 45,720.75-68,518.86-25,739.78

Finding the Fourth Proportional to 45,720.75, 68,518.86 and 25,739.78

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Solution

The fourth proportional to 45,720.75, 68,518.86 and 25,739.78 is: 38,574.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,720.75 : 68,518.86 = 25,739.78 : x
  2. Step 2: Convert to fraction form
    45,720.75/68,518.86 = 25,739.78/x
  3. Step 3: Cross multiply
    45,720.75x = 68,518.86 × 25,739.78
  4. Step 4: Simplify right side
    45,720.75x = 1,763,659,910.96
  5. Step 5: Solve for x
    x = 1,763,659,910.96/45,720.75
  6. Step 6: Final answer
    x = 38,574.61

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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.