Home / 54,366.55-81,530.26-18,818.21

Finding the Fourth Proportional to 54,366.55, 81,530.26 and 18,818.21

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Solution

The fourth proportional to 54,366.55, 81,530.26 and 18,818.21 is: 28,220.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,366.55 : 81,530.26 = 18,818.21 : x
  2. Step 2: Convert to fraction form
    54,366.55/81,530.26 = 18,818.21/x
  3. Step 3: Cross multiply
    54,366.55x = 81,530.26 × 18,818.21
  4. Step 4: Simplify right side
    54,366.55x = 1,534,253,554.03
  5. Step 5: Solve for x
    x = 1,534,253,554.03/54,366.55
  6. Step 6: Final answer
    x = 28,220.54

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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.