Home / 81,925.35-113,029.70-66,791.94

Finding the Fourth Proportional to 81,925.35, 113,029.70 and 66,791.94

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Solution

The fourth proportional to 81,925.35, 113,029.70 and 66,791.94 is: 92,150.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,925.35 : 113,029.70 = 66,791.94 : x
  2. Step 2: Convert to fraction form
    81,925.35/113,029.70 = 66,791.94/x
  3. Step 3: Cross multiply
    81,925.35x = 113,029.70 × 66,791.94
  4. Step 4: Simplify right side
    81,925.35x = 7,549,472,606.66
  5. Step 5: Solve for x
    x = 7,549,472,606.66/81,925.35
  6. Step 6: Final answer
    x = 92,150.63

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.