Home / 81,624.48-122,456.16-29,038.56

Finding the Fourth Proportional to 81,624.48, 122,456.16 and 29,038.56

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Solution

The fourth proportional to 81,624.48, 122,456.16 and 29,038.56 is: 43,564.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,624.48 : 122,456.16 = 29,038.56 : x
  2. Step 2: Convert to fraction form
    81,624.48/122,456.16 = 29,038.56/x
  3. Step 3: Cross multiply
    81,624.48x = 122,456.16 × 29,038.56
  4. Step 4: Simplify right side
    81,624.48x = 3,555,950,549.53
  5. Step 5: Solve for x
    x = 3,555,950,549.53/81,624.48
  6. Step 6: Final answer
    x = 43,564.76

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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.