Home / 54,014.12-80,971.92-18,934.64

Finding the Fourth Proportional to 54,014.12, 80,971.92 and 18,934.64

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Solution

The fourth proportional to 54,014.12, 80,971.92 and 18,934.64 is: 28,384.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,014.12 : 80,971.92 = 18,934.64 : x
  2. Step 2: Convert to fraction form
    54,014.12/80,971.92 = 18,934.64/x
  3. Step 3: Cross multiply
    54,014.12x = 80,971.92 × 18,934.64
  4. Step 4: Simplify right side
    54,014.12x = 1,533,174,155.31
  5. Step 5: Solve for x
    x = 1,533,174,155.31/54,014.12
  6. Step 6: Final answer
    x = 28,384.69

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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.