Home / 81,498.36-122,274.17-39,383.29

Finding the Fourth Proportional to 81,498.36, 122,274.17 and 39,383.29

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Solution

The fourth proportional to 81,498.36, 122,274.17 and 39,383.29 is: 59,087.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,498.36 : 122,274.17 = 39,383.29 : x
  2. Step 2: Convert to fraction form
    81,498.36/122,274.17 = 39,383.29/x
  3. Step 3: Cross multiply
    81,498.36x = 122,274.17 × 39,383.29
  4. Step 4: Simplify right side
    81,498.36x = 4,815,559,096.62
  5. Step 5: Solve for x
    x = 4,815,559,096.62/81,498.36
  6. Step 6: Final answer
    x = 59,087.80

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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.