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Finding the Fourth Proportional to 82,899.70, 124,374.12 and 38,552.80

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Solution

The fourth proportional to 82,899.70, 124,374.12 and 38,552.80 is: 57,840.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,899.70 : 124,374.12 = 38,552.80 : x
  2. Step 2: Convert to fraction form
    82,899.70/124,374.12 = 38,552.80/x
  3. Step 3: Cross multiply
    82,899.70x = 124,374.12 × 38,552.80
  4. Step 4: Simplify right side
    82,899.70x = 4,794,970,573.54
  5. Step 5: Solve for x
    x = 4,794,970,573.54/82,899.70
  6. Step 6: Final answer
    x = 57,840.63

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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.