Home / 71,018.48-98,001.36-39,187.30

Finding the Fourth Proportional to 71,018.48, 98,001.36 and 39,187.30

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Solution

The fourth proportional to 71,018.48, 98,001.36 and 39,187.30 is: 54,076.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,018.48 : 98,001.36 = 39,187.30 : x
  2. Step 2: Convert to fraction form
    71,018.48/98,001.36 = 39,187.30/x
  3. Step 3: Cross multiply
    71,018.48x = 98,001.36 × 39,187.30
  4. Step 4: Simplify right side
    71,018.48x = 3,840,408,694.73
  5. Step 5: Solve for x
    x = 3,840,408,694.73/71,018.48
  6. Step 6: Final answer
    x = 54,076.19

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.