Home / 54,287.54-81,442.19-18,750.16

Finding the Fourth Proportional to 54,287.54, 81,442.19 and 18,750.16

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Solution

The fourth proportional to 54,287.54, 81,442.19 and 18,750.16 is: 28,129.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,287.54 : 81,442.19 = 18,750.16 : x
  2. Step 2: Convert to fraction form
    54,287.54/81,442.19 = 18,750.16/x
  3. Step 3: Cross multiply
    54,287.54x = 81,442.19 × 18,750.16
  4. Step 4: Simplify right side
    54,287.54x = 1,527,054,171.62
  5. Step 5: Solve for x
    x = 1,527,054,171.62/54,287.54
  6. Step 6: Final answer
    x = 28,129.00

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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.