Home / 54,317.64-81,456.48-18,769.95

Finding the Fourth Proportional to 54,317.64, 81,456.48 and 18,769.95

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Solution

The fourth proportional to 54,317.64, 81,456.48 and 18,769.95 is: 28,148.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,317.64 : 81,456.48 = 18,769.95 : x
  2. Step 2: Convert to fraction form
    54,317.64/81,456.48 = 18,769.95/x
  3. Step 3: Cross multiply
    54,317.64x = 81,456.48 × 18,769.95
  4. Step 4: Simplify right side
    54,317.64x = 1,528,934,056.78
  5. Step 5: Solve for x
    x = 1,528,934,056.78/54,317.64
  6. Step 6: Final answer
    x = 28,148.02

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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.