Home / 77,664.27-116,321.39-54,394.59

Finding the Fourth Proportional to 77,664.27, 116,321.39 and 54,394.59

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Solution

The fourth proportional to 77,664.27, 116,321.39 and 54,394.59 is: 81,469.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,664.27 : 116,321.39 = 54,394.59 : x
  2. Step 2: Convert to fraction form
    77,664.27/116,321.39 = 54,394.59/x
  3. Step 3: Cross multiply
    77,664.27x = 116,321.39 × 54,394.59
  4. Step 4: Simplify right side
    77,664.27x = 6,327,254,045.31
  5. Step 5: Solve for x
    x = 6,327,254,045.31/77,664.27
  6. Step 6: Final answer
    x = 81,469.30

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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.