Home / 81,455.45-122,202.29-25,292.66

Finding the Fourth Proportional to 81,455.45, 122,202.29 and 25,292.66

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Solution

The fourth proportional to 81,455.45, 122,202.29 and 25,292.66 is: 37,944.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,455.45 : 122,202.29 = 25,292.66 : x
  2. Step 2: Convert to fraction form
    81,455.45/122,202.29 = 25,292.66/x
  3. Step 3: Cross multiply
    81,455.45x = 122,202.29 × 25,292.66
  4. Step 4: Simplify right side
    81,455.45x = 3,090,820,424.41
  5. Step 5: Solve for x
    x = 3,090,820,424.41/81,455.45
  6. Step 6: Final answer
    x = 37,944.92

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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.