Home / 81,856.58-122,743.35-41,869.44

Finding the Fourth Proportional to 81,856.58, 122,743.35 and 41,869.44

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Solution

The fourth proportional to 81,856.58, 122,743.35 and 41,869.44 is: 62,782.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,856.58 : 122,743.35 = 41,869.44 : x
  2. Step 2: Convert to fraction form
    81,856.58/122,743.35 = 41,869.44/x
  3. Step 3: Cross multiply
    81,856.58x = 122,743.35 × 41,869.44
  4. Step 4: Simplify right side
    81,856.58x = 5,139,195,328.22
  5. Step 5: Solve for x
    x = 5,139,195,328.22/81,856.58
  6. Step 6: Final answer
    x = 62,782.93

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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.