Home / 75,786.47-113,705-50,586.77

Finding the Fourth Proportional to 75,786.47, 113,705 and 50,586.77

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Solution

The fourth proportional to 75,786.47, 113,705 and 50,586.77 is: 75,897.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,786.47 : 113,705 = 50,586.77 : x
  2. Step 2: Convert to fraction form
    75,786.47/113,705 = 50,586.77/x
  3. Step 3: Cross multiply
    75,786.47x = 113,705 × 50,586.77
  4. Step 4: Simplify right side
    75,786.47x = 5,751,968,682.85
  5. Step 5: Solve for x
    x = 5,751,968,682.85/75,786.47
  6. Step 6: Final answer
    x = 75,897.04

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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.