Home / 81,105.49-121,701.81-33,753.23

Finding the Fourth Proportional to 81,105.49, 121,701.81 and 33,753.23

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Solution

The fourth proportional to 81,105.49, 121,701.81 and 33,753.23 is: 50,647.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,105.49 : 121,701.81 = 33,753.23 : x
  2. Step 2: Convert to fraction form
    81,105.49/121,701.81 = 33,753.23/x
  3. Step 3: Cross multiply
    81,105.49x = 121,701.81 × 33,753.23
  4. Step 4: Simplify right side
    81,105.49x = 4,107,829,184.35
  5. Step 5: Solve for x
    x = 4,107,829,184.35/81,105.49
  6. Step 6: Final answer
    x = 50,647.98

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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.