Home / 81,618.12-122,450.04-29,032.92

Finding the Fourth Proportional to 81,618.12, 122,450.04 and 29,032.92

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Solution

The fourth proportional to 81,618.12, 122,450.04 and 29,032.92 is: 43,557.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,618.12 : 122,450.04 = 29,032.92 : x
  2. Step 2: Convert to fraction form
    81,618.12/122,450.04 = 29,032.92/x
  3. Step 3: Cross multiply
    81,618.12x = 122,450.04 × 29,032.92
  4. Step 4: Simplify right side
    81,618.12x = 3,555,082,215.32
  5. Step 5: Solve for x
    x = 3,555,082,215.32/81,618.12
  6. Step 6: Final answer
    x = 43,557.51

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1.5x scale

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.