Home / 81,196.11-121,779.81-22,036.41

Finding the Fourth Proportional to 81,196.11, 121,779.81 and 22,036.41

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Solution

The fourth proportional to 81,196.11, 121,779.81 and 22,036.41 is: 33,050.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,196.11 : 121,779.81 = 22,036.41 : x
  2. Step 2: Convert to fraction form
    81,196.11/121,779.81 = 22,036.41/x
  3. Step 3: Cross multiply
    81,196.11x = 121,779.81 × 22,036.41
  4. Step 4: Simplify right side
    81,196.11x = 2,683,589,822.88
  5. Step 5: Solve for x
    x = 2,683,589,822.88/81,196.11
  6. Step 6: Final answer
    x = 33,050.72

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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.