Home / 81,628.89-122,481-37,269.24

Finding the Fourth Proportional to 81,628.89, 122,481 and 37,269.24

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Solution

The fourth proportional to 81,628.89, 122,481 and 37,269.24 is: 55,921.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,628.89 : 122,481 = 37,269.24 : x
  2. Step 2: Convert to fraction form
    81,628.89/122,481 = 37,269.24/x
  3. Step 3: Cross multiply
    81,628.89x = 122,481 × 37,269.24
  4. Step 4: Simplify right side
    81,628.89x = 4,564,773,784.44
  5. Step 5: Solve for x
    x = 4,564,773,784.44/81,628.89
  6. Step 6: Final answer
    x = 55,921.06

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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.