Home / 81,434.84-122,172.03-41,355.36

Finding the Fourth Proportional to 81,434.84, 122,172.03 and 41,355.36

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Solution

The fourth proportional to 81,434.84, 122,172.03 and 41,355.36 is: 62,043.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,434.84 : 122,172.03 = 41,355.36 : x
  2. Step 2: Convert to fraction form
    81,434.84/122,172.03 = 41,355.36/x
  3. Step 3: Cross multiply
    81,434.84x = 122,172.03 × 41,355.36
  4. Step 4: Simplify right side
    81,434.84x = 5,052,468,282.58
  5. Step 5: Solve for x
    x = 5,052,468,282.58/81,434.84
  6. Step 6: Final answer
    x = 62,043.08

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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.