Home / 71,326.11-98,422.05-39,487.02

Finding the Fourth Proportional to 71,326.11, 98,422.05 and 39,487.02

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Solution

The fourth proportional to 71,326.11, 98,422.05 and 39,487.02 is: 54,487.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,326.11 : 98,422.05 = 39,487.02 : x
  2. Step 2: Convert to fraction form
    71,326.11/98,422.05 = 39,487.02/x
  3. Step 3: Cross multiply
    71,326.11x = 98,422.05 × 39,487.02
  4. Step 4: Simplify right side
    71,326.11x = 3,886,393,456.79
  5. Step 5: Solve for x
    x = 3,886,393,456.79/71,326.11
  6. Step 6: Final answer
    x = 54,487.67

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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.