Home / 81,788.45-122,682.53-25,632.87

Finding the Fourth Proportional to 81,788.45, 122,682.53 and 25,632.87

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Solution

The fourth proportional to 81,788.45, 122,682.53 and 25,632.87 is: 38,449.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,788.45 : 122,682.53 = 25,632.87 : x
  2. Step 2: Convert to fraction form
    81,788.45/122,682.53 = 25,632.87/x
  3. Step 3: Cross multiply
    81,788.45x = 122,682.53 × 25,632.87
  4. Step 4: Simplify right side
    81,788.45x = 3,144,705,342.76
  5. Step 5: Solve for x
    x = 3,144,705,342.76/81,788.45
  6. Step 6: Final answer
    x = 38,449.26

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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.