Home / 84,428.48-126,673.08-39,489.92

Finding the Fourth Proportional to 84,428.48, 126,673.08 and 39,489.92

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Solution

The fourth proportional to 84,428.48, 126,673.08 and 39,489.92 is: 59,249.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,428.48 : 126,673.08 = 39,489.92 : x
  2. Step 2: Convert to fraction form
    84,428.48/126,673.08 = 39,489.92/x
  3. Step 3: Cross multiply
    84,428.48x = 126,673.08 × 39,489.92
  4. Step 4: Simplify right side
    84,428.48x = 5,002,309,795.35
  5. Step 5: Solve for x
    x = 5,002,309,795.35/84,428.48
  6. Step 6: Final answer
    x = 59,249.08

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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.