Home / 53,218.13-79,827.19-18,157.78

Finding the Fourth Proportional to 53,218.13, 79,827.19 and 18,157.78

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Solution

The fourth proportional to 53,218.13, 79,827.19 and 18,157.78 is: 27,236.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,218.13 : 79,827.19 = 18,157.78 : x
  2. Step 2: Convert to fraction form
    53,218.13/79,827.19 = 18,157.78/x
  3. Step 3: Cross multiply
    53,218.13x = 79,827.19 × 18,157.78
  4. Step 4: Simplify right side
    53,218.13x = 1,449,484,608.43
  5. Step 5: Solve for x
    x = 1,449,484,608.43/53,218.13
  6. Step 6: Final answer
    x = 27,236.67

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Similar ratio
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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.