Home / 54,530.20-81,968.10-51,419.80

Finding the Fourth Proportional to 54,530.20, 81,968.10 and 51,419.80

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Solution

The fourth proportional to 54,530.20, 81,968.10 and 51,419.80 is: 77,292.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,530.20 : 81,968.10 = 51,419.80 : x
  2. Step 2: Convert to fraction form
    54,530.20/81,968.10 = 51,419.80/x
  3. Step 3: Cross multiply
    54,530.20x = 81,968.10 × 51,419.80
  4. Step 4: Simplify right side
    54,530.20x = 4,214,783,308.38
  5. Step 5: Solve for x
    x = 4,214,783,308.38/54,530.20
  6. Step 6: Final answer
    x = 77,292.64

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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.