Home / 74,179.72-111,287.79-21,589.66

Finding the Fourth Proportional to 74,179.72, 111,287.79 and 21,589.66

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Solution

The fourth proportional to 74,179.72, 111,287.79 and 21,589.66 is: 32,389.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,179.72 : 111,287.79 = 21,589.66 : x
  2. Step 2: Convert to fraction form
    74,179.72/111,287.79 = 21,589.66/x
  3. Step 3: Cross multiply
    74,179.72x = 111,287.79 × 21,589.66
  4. Step 4: Simplify right side
    74,179.72x = 2,402,665,548.25
  5. Step 5: Solve for x
    x = 2,402,665,548.25/74,179.72
  6. Step 6: Final answer
    x = 32,389.79

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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.