Home / 81,082.22-121,592.31-38,950.58

Finding the Fourth Proportional to 81,082.22, 121,592.31 and 38,950.58

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Solution

The fourth proportional to 81,082.22, 121,592.31 and 38,950.58 is: 58,410.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,082.22 : 121,592.31 = 38,950.58 : x
  2. Step 2: Convert to fraction form
    81,082.22/121,592.31 = 38,950.58/x
  3. Step 3: Cross multiply
    81,082.22x = 121,592.31 × 38,950.58
  4. Step 4: Simplify right side
    81,082.22x = 4,736,090,998.04
  5. Step 5: Solve for x
    x = 4,736,090,998.04/81,082.22
  6. Step 6: Final answer
    x = 58,410.97

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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.