Home / 81,811.82-112,855.53-52,749.26

Finding the Fourth Proportional to 81,811.82, 112,855.53 and 52,749.26

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Solution

The fourth proportional to 81,811.82, 112,855.53 and 52,749.26 is: 72,765.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,811.82 : 112,855.53 = 52,749.26 : x
  2. Step 2: Convert to fraction form
    81,811.82/112,855.53 = 52,749.26/x
  3. Step 3: Cross multiply
    81,811.82x = 112,855.53 × 52,749.26
  4. Step 4: Simplify right side
    81,811.82x = 5,953,045,694.41
  5. Step 5: Solve for x
    x = 5,953,045,694.41/81,811.82
  6. Step 6: Final answer
    x = 72,765.11

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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.