Home / 54,165.69-81,219.56-18,126.28

Finding the Fourth Proportional to 54,165.69, 81,219.56 and 18,126.28

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Solution

The fourth proportional to 54,165.69, 81,219.56 and 18,126.28 is: 27,179.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,165.69 : 81,219.56 = 18,126.28 : x
  2. Step 2: Convert to fraction form
    54,165.69/81,219.56 = 18,126.28/x
  3. Step 3: Cross multiply
    54,165.69x = 81,219.56 × 18,126.28
  4. Step 4: Simplify right side
    54,165.69x = 1,472,208,598.89
  5. Step 5: Solve for x
    x = 1,472,208,598.89/54,165.69
  6. Step 6: Final answer
    x = 27,179.73

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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.