Home / 53,247.38-79,865.73-21,659.30

Finding the Fourth Proportional to 53,247.38, 79,865.73 and 21,659.30

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Solution

The fourth proportional to 53,247.38, 79,865.73 and 21,659.30 is: 32,486.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,247.38 : 79,865.73 = 21,659.30 : x
  2. Step 2: Convert to fraction form
    53,247.38/79,865.73 = 21,659.30/x
  3. Step 3: Cross multiply
    53,247.38x = 79,865.73 × 21,659.30
  4. Step 4: Simplify right side
    53,247.38x = 1,729,835,705.96
  5. Step 5: Solve for x
    x = 1,729,835,705.96/53,247.38
  6. Step 6: Final answer
    x = 32,486.78

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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.