Home / 54,243.58-81,389.31-18,710.32

Finding the Fourth Proportional to 54,243.58, 81,389.31 and 18,710.32

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Solution

The fourth proportional to 54,243.58, 81,389.31 and 18,710.32 is: 28,073.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,243.58 : 81,389.31 = 18,710.32 : x
  2. Step 2: Convert to fraction form
    54,243.58/81,389.31 = 18,710.32/x
  3. Step 3: Cross multiply
    54,243.58x = 81,389.31 × 18,710.32
  4. Step 4: Simplify right side
    54,243.58x = 1,522,820,034.68
  5. Step 5: Solve for x
    x = 1,522,820,034.68/54,243.58
  6. Step 6: Final answer
    x = 28,073.74

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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.