Home / 87,084.12-130,644.65-27,961.32

Finding the Fourth Proportional to 87,084.12, 130,644.65 and 27,961.32

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Solution

The fourth proportional to 87,084.12, 130,644.65 and 27,961.32 is: 41,947.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,084.12 : 130,644.65 = 27,961.32 : x
  2. Step 2: Convert to fraction form
    87,084.12/130,644.65 = 27,961.32/x
  3. Step 3: Cross multiply
    87,084.12x = 130,644.65 × 27,961.32
  4. Step 4: Simplify right side
    87,084.12x = 3,652,996,864.94
  5. Step 5: Solve for x
    x = 3,652,996,864.94/87,084.12
  6. Step 6: Final answer
    x = 41,947.91

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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.