Home / 74,276.92-111,422.04-20,969.46

Finding the Fourth Proportional to 74,276.92, 111,422.04 and 20,969.46

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Solution

The fourth proportional to 74,276.92, 111,422.04 and 20,969.46 is: 31,456.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,276.92 : 111,422.04 = 20,969.46 : x
  2. Step 2: Convert to fraction form
    74,276.92/111,422.04 = 20,969.46/x
  3. Step 3: Cross multiply
    74,276.92x = 111,422.04 × 20,969.46
  4. Step 4: Simplify right side
    74,276.92x = 2,336,460,010.90
  5. Step 5: Solve for x
    x = 2,336,460,010.90/74,276.92
  6. Step 6: Final answer
    x = 31,456.07

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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.