Home / 81,906.29-113,065.55-55,064.37

Finding the Fourth Proportional to 81,906.29, 113,065.55 and 55,064.37

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Solution

The fourth proportional to 81,906.29, 113,065.55 and 55,064.37 is: 76,012.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,906.29 : 113,065.55 = 55,064.37 : x
  2. Step 2: Convert to fraction form
    81,906.29/113,065.55 = 55,064.37/x
  3. Step 3: Cross multiply
    81,906.29x = 113,065.55 × 55,064.37
  4. Step 4: Simplify right side
    81,906.29x = 6,225,882,714.13
  5. Step 5: Solve for x
    x = 6,225,882,714.13/81,906.29
  6. Step 6: Final answer
    x = 76,012.27

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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.