Home / 81,493.32-122,203.08-25,316.76

Finding the Fourth Proportional to 81,493.32, 122,203.08 and 25,316.76

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Solution

The fourth proportional to 81,493.32, 122,203.08 and 25,316.76 is: 37,963.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,493.32 : 122,203.08 = 25,316.76 : x
  2. Step 2: Convert to fraction form
    81,493.32/122,203.08 = 25,316.76/x
  3. Step 3: Cross multiply
    81,493.32x = 122,203.08 × 25,316.76
  4. Step 4: Simplify right side
    81,493.32x = 3,093,786,047.62
  5. Step 5: Solve for x
    x = 3,093,786,047.62/81,493.32
  6. Step 6: Final answer
    x = 37,963.68

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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.