Home / 87,141.33-130,728.96-27,972.45

Finding the Fourth Proportional to 87,141.33, 130,728.96 and 27,972.45

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Solution

The fourth proportional to 87,141.33, 130,728.96 and 27,972.45 is: 41,964.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,141.33 : 130,728.96 = 27,972.45 : x
  2. Step 2: Convert to fraction form
    87,141.33/130,728.96 = 27,972.45/x
  3. Step 3: Cross multiply
    87,141.33x = 130,728.96 × 27,972.45
  4. Step 4: Simplify right side
    87,141.33x = 3,656,809,297.15
  5. Step 5: Solve for x
    x = 3,656,809,297.15/87,141.33
  6. Step 6: Final answer
    x = 41,964.12

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1.5x scale

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.