Home / 71,331.40-106,998.54-26,979.16

Finding the Fourth Proportional to 71,331.40, 106,998.54 and 26,979.16

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Solution

The fourth proportional to 71,331.40, 106,998.54 and 26,979.16 is: 40,469.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,331.40 : 106,998.54 = 26,979.16 : x
  2. Step 2: Convert to fraction form
    71,331.40/106,998.54 = 26,979.16/x
  3. Step 3: Cross multiply
    71,331.40x = 106,998.54 × 26,979.16
  4. Step 4: Simplify right side
    71,331.40x = 2,886,730,730.43
  5. Step 5: Solve for x
    x = 2,886,730,730.43/71,331.40
  6. Step 6: Final answer
    x = 40,469.28

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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.