Home / 54,106.38-81,168.30-16,666.45

Finding the Fourth Proportional to 54,106.38, 81,168.30 and 16,666.45

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Solution

The fourth proportional to 54,106.38, 81,168.30 and 16,666.45 is: 25,002.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,106.38 : 81,168.30 = 16,666.45 : x
  2. Step 2: Convert to fraction form
    54,106.38/81,168.30 = 16,666.45/x
  3. Step 3: Cross multiply
    54,106.38x = 81,168.30 × 16,666.45
  4. Step 4: Simplify right side
    54,106.38x = 1,352,787,210.61
  5. Step 5: Solve for x
    x = 1,352,787,210.61/54,106.38
  6. Step 6: Final answer
    x = 25,002.36

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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.