Home / 54,468.28-81,707.46-21,190.86

Finding the Fourth Proportional to 54,468.28, 81,707.46 and 21,190.86

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Solution

The fourth proportional to 54,468.28, 81,707.46 and 21,190.86 is: 31,788.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,468.28 : 81,707.46 = 21,190.86 : x
  2. Step 2: Convert to fraction form
    54,468.28/81,707.46 = 21,190.86/x
  3. Step 3: Cross multiply
    54,468.28x = 81,707.46 × 21,190.86
  4. Step 4: Simplify right side
    54,468.28x = 1,731,451,345.82
  5. Step 5: Solve for x
    x = 1,731,451,345.82/54,468.28
  6. Step 6: Final answer
    x = 31,788.25

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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.