Home / 81,336.72-122,046.39-54,983.37

Finding the Fourth Proportional to 81,336.72, 122,046.39 and 54,983.37

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Solution

The fourth proportional to 81,336.72, 122,046.39 and 54,983.37 is: 82,502.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,336.72 : 122,046.39 = 54,983.37 : x
  2. Step 2: Convert to fraction form
    81,336.72/122,046.39 = 54,983.37/x
  3. Step 3: Cross multiply
    81,336.72x = 122,046.39 × 54,983.37
  4. Step 4: Simplify right side
    81,336.72x = 6,710,521,818.53
  5. Step 5: Solve for x
    x = 6,710,521,818.53/81,336.72
  6. Step 6: Final answer
    x = 82,502.98

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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.