Home / 81,462.08-122,212.24-25,299.28

Finding the Fourth Proportional to 81,462.08, 122,212.24 and 25,299.28

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Solution

The fourth proportional to 81,462.08, 122,212.24 and 25,299.28 is: 37,954.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,462.08 : 122,212.24 = 25,299.28 : x
  2. Step 2: Convert to fraction form
    81,462.08/122,212.24 = 25,299.28/x
  3. Step 3: Cross multiply
    81,462.08x = 122,212.24 × 25,299.28
  4. Step 4: Simplify right side
    81,462.08x = 3,091,881,679.19
  5. Step 5: Solve for x
    x = 3,091,881,679.19/81,462.08
  6. Step 6: Final answer
    x = 37,954.86

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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.