Home / 71,318.43-98,422.51-39,487.33

Finding the Fourth Proportional to 71,318.43, 98,422.51 and 39,487.33

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Solution

The fourth proportional to 71,318.43, 98,422.51 and 39,487.33 is: 54,494.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,318.43 : 98,422.51 = 39,487.33 : x
  2. Step 2: Convert to fraction form
    71,318.43/98,422.51 = 39,487.33/x
  3. Step 3: Cross multiply
    71,318.43x = 98,422.51 × 39,487.33
  4. Step 4: Simplify right side
    71,318.43x = 3,886,441,984.46
  5. Step 5: Solve for x
    x = 3,886,441,984.46/71,318.43
  6. Step 6: Final answer
    x = 54,494.21

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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.