Home / 54,538.11-81,820.33-18,994.23

Finding the Fourth Proportional to 54,538.11, 81,820.33 and 18,994.23

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Solution

The fourth proportional to 54,538.11, 81,820.33 and 18,994.23 is: 28,495.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,538.11 : 81,820.33 = 18,994.23 : x
  2. Step 2: Convert to fraction form
    54,538.11/81,820.33 = 18,994.23/x
  3. Step 3: Cross multiply
    54,538.11x = 81,820.33 × 18,994.23
  4. Step 4: Simplify right side
    54,538.11x = 1,554,114,119.21
  5. Step 5: Solve for x
    x = 1,554,114,119.21/54,538.11
  6. Step 6: Final answer
    x = 28,495.93

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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.