Home / 81,842.24-122,763.51-22,678.08

Finding the Fourth Proportional to 81,842.24, 122,763.51 and 22,678.08

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Solution

The fourth proportional to 81,842.24, 122,763.51 and 22,678.08 is: 34,017.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,842.24 : 122,763.51 = 22,678.08 : x
  2. Step 2: Convert to fraction form
    81,842.24/122,763.51 = 22,678.08/x
  3. Step 3: Cross multiply
    81,842.24x = 122,763.51 × 22,678.08
  4. Step 4: Simplify right side
    81,842.24x = 2,784,040,700.86
  5. Step 5: Solve for x
    x = 2,784,040,700.86/81,842.24
  6. Step 6: Final answer
    x = 34,017.16

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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.