Home / 81,195.63-121,779.06-22,035.90

Finding the Fourth Proportional to 81,195.63, 121,779.06 and 22,035.90

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Solution

The fourth proportional to 81,195.63, 121,779.06 and 22,035.90 is: 33,049.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,195.63 : 121,779.06 = 22,035.90 : x
  2. Step 2: Convert to fraction form
    81,195.63/121,779.06 = 22,035.90/x
  3. Step 3: Cross multiply
    81,195.63x = 121,779.06 × 22,035.90
  4. Step 4: Simplify right side
    81,195.63x = 2,683,510,579.36
  5. Step 5: Solve for x
    x = 2,683,510,579.36/81,195.63
  6. Step 6: Final answer
    x = 33,049.94

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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.