Home / 71,318.36-98,425.96-39,487.28

Finding the Fourth Proportional to 71,318.36, 98,425.96 and 39,487.28

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Solution

The fourth proportional to 71,318.36, 98,425.96 and 39,487.28 is: 54,496.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,318.36 : 98,425.96 = 39,487.28 : x
  2. Step 2: Convert to fraction form
    71,318.36/98,425.96 = 39,487.28/x
  3. Step 3: Cross multiply
    71,318.36x = 98,425.96 × 39,487.28
  4. Step 4: Simplify right side
    71,318.36x = 3,886,573,441.79
  5. Step 5: Solve for x
    x = 3,886,573,441.79/71,318.36
  6. Step 6: Final answer
    x = 54,496.11

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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.