Home / 53,213.11-79,827.86-18,144.56

Finding the Fourth Proportional to 53,213.11, 79,827.86 and 18,144.56

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Solution

The fourth proportional to 53,213.11, 79,827.86 and 18,144.56 is: 27,219.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,213.11 : 79,827.86 = 18,144.56 : x
  2. Step 2: Convert to fraction form
    53,213.11/79,827.86 = 18,144.56/x
  3. Step 3: Cross multiply
    53,213.11x = 79,827.86 × 18,144.56
  4. Step 4: Simplify right side
    53,213.11x = 1,448,441,640.37
  5. Step 5: Solve for x
    x = 1,448,441,640.37/53,213.11
  6. Step 6: Final answer
    x = 27,219.64

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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.