Home / 81,331.59-122,003.09-25,164.30

Finding the Fourth Proportional to 81,331.59, 122,003.09 and 25,164.30

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Solution

The fourth proportional to 81,331.59, 122,003.09 and 25,164.30 is: 37,748.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,331.59 : 122,003.09 = 25,164.30 : x
  2. Step 2: Convert to fraction form
    81,331.59/122,003.09 = 25,164.30/x
  3. Step 3: Cross multiply
    81,331.59x = 122,003.09 × 25,164.30
  4. Step 4: Simplify right side
    81,331.59x = 3,070,122,231.87
  5. Step 5: Solve for x
    x = 3,070,122,231.87/81,331.59
  6. Step 6: Final answer
    x = 37,748.21

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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.