Home / 81,273.09-112,179.41-47,288.14

Finding the Fourth Proportional to 81,273.09, 112,179.41 and 47,288.14

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Solution

The fourth proportional to 81,273.09, 112,179.41 and 47,288.14 is: 65,270.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,273.09 : 112,179.41 = 47,288.14 : x
  2. Step 2: Convert to fraction form
    81,273.09/112,179.41 = 47,288.14/x
  3. Step 3: Cross multiply
    81,273.09x = 112,179.41 × 47,288.14
  4. Step 4: Simplify right side
    81,273.09x = 5,304,755,408.76
  5. Step 5: Solve for x
    x = 5,304,755,408.76/81,273.09
  6. Step 6: Final answer
    x = 65,270.75

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1.5x scale

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.