Home / 88,243.92-121,721.76-52,408.08

Finding the Fourth Proportional to 88,243.92, 121,721.76 and 52,408.08

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Solution

The fourth proportional to 88,243.92, 121,721.76 and 52,408.08 is: 72,290.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,243.92 : 121,721.76 = 52,408.08 : x
  2. Step 2: Convert to fraction form
    88,243.92/121,721.76 = 52,408.08/x
  3. Step 3: Cross multiply
    88,243.92x = 121,721.76 × 52,408.08
  4. Step 4: Simplify right side
    88,243.92x = 6,379,203,735.82
  5. Step 5: Solve for x
    x = 6,379,203,735.82/88,243.92
  6. Step 6: Final answer
    x = 72,290.58

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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.