Home / 54,138.23-81,187.12-18,589.46

Finding the Fourth Proportional to 54,138.23, 81,187.12 and 18,589.46

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Solution

The fourth proportional to 54,138.23, 81,187.12 and 18,589.46 is: 27,877.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,138.23 : 81,187.12 = 18,589.46 : x
  2. Step 2: Convert to fraction form
    54,138.23/81,187.12 = 18,589.46/x
  3. Step 3: Cross multiply
    54,138.23x = 81,187.12 × 18,589.46
  4. Step 4: Simplify right side
    54,138.23x = 1,509,224,719.76
  5. Step 5: Solve for x
    x = 1,509,224,719.76/54,138.23
  6. Step 6: Final answer
    x = 27,877.25

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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.