Home / 54,288.54-81,443.69-18,751.16

Finding the Fourth Proportional to 54,288.54, 81,443.69 and 18,751.16

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Solution

The fourth proportional to 54,288.54, 81,443.69 and 18,751.16 is: 28,130.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,288.54 : 81,443.69 = 18,751.16 : x
  2. Step 2: Convert to fraction form
    54,288.54/81,443.69 = 18,751.16/x
  3. Step 3: Cross multiply
    54,288.54x = 81,443.69 × 18,751.16
  4. Step 4: Simplify right side
    54,288.54x = 1,527,163,662.18
  5. Step 5: Solve for x
    x = 1,527,163,662.18/54,288.54
  6. Step 6: Final answer
    x = 28,130.50

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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.