Home / 54,135.78-81,182.84-18,590.48

Finding the Fourth Proportional to 54,135.78, 81,182.84 and 18,590.48

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Solution

The fourth proportional to 54,135.78, 81,182.84 and 18,590.48 is: 27,878.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,135.78 : 81,182.84 = 18,590.48 : x
  2. Step 2: Convert to fraction form
    54,135.78/81,182.84 = 18,590.48/x
  3. Step 3: Cross multiply
    54,135.78x = 81,182.84 × 18,590.48
  4. Step 4: Simplify right side
    54,135.78x = 1,509,227,963.36
  5. Step 5: Solve for x
    x = 1,509,227,963.36/54,135.78
  6. Step 6: Final answer
    x = 27,878.57

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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.