Home / 71,456.38-98,609.25-39,625.36

Finding the Fourth Proportional to 71,456.38, 98,609.25 and 39,625.36

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Solution

The fourth proportional to 71,456.38, 98,609.25 and 39,625.36 is: 54,682.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,456.38 : 98,609.25 = 39,625.36 : x
  2. Step 2: Convert to fraction form
    71,456.38/98,609.25 = 39,625.36/x
  3. Step 3: Cross multiply
    71,456.38x = 98,609.25 × 39,625.36
  4. Step 4: Simplify right side
    71,456.38x = 3,907,427,030.58
  5. Step 5: Solve for x
    x = 3,907,427,030.58/71,456.38
  6. Step 6: Final answer
    x = 54,682.69

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1.5x scale

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.