Home / 54,217.66-81,310.86-18,677.54

Finding the Fourth Proportional to 54,217.66, 81,310.86 and 18,677.54

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Solution

The fourth proportional to 54,217.66, 81,310.86 and 18,677.54 is: 28,010.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,217.66 : 81,310.86 = 18,677.54 : x
  2. Step 2: Convert to fraction form
    54,217.66/81,310.86 = 18,677.54/x
  3. Step 3: Cross multiply
    54,217.66x = 81,310.86 × 18,677.54
  4. Step 4: Simplify right side
    54,217.66x = 1,518,686,840.08
  5. Step 5: Solve for x
    x = 1,518,686,840.08/54,217.66
  6. Step 6: Final answer
    x = 28,010.93

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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.