Home / 53,145.18-79,727.58-21,982.86

Finding the Fourth Proportional to 53,145.18, 79,727.58 and 21,982.86

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Solution

The fourth proportional to 53,145.18, 79,727.58 and 21,982.86 is: 32,978.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,145.18 : 79,727.58 = 21,982.86 : x
  2. Step 2: Convert to fraction form
    53,145.18/79,727.58 = 21,982.86/x
  3. Step 3: Cross multiply
    53,145.18x = 79,727.58 × 21,982.86
  4. Step 4: Simplify right side
    53,145.18x = 1,752,640,229.28
  5. Step 5: Solve for x
    x = 1,752,640,229.28/53,145.18
  6. Step 6: Final answer
    x = 32,978.35

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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.