Home / 85,331.20-127,892.98-60,378.44

Finding the Fourth Proportional to 85,331.20, 127,892.98 and 60,378.44

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Solution

The fourth proportional to 85,331.20, 127,892.98 and 60,378.44 is: 90,494.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,331.20 : 127,892.98 = 60,378.44 : x
  2. Step 2: Convert to fraction form
    85,331.20/127,892.98 = 60,378.44/x
  3. Step 3: Cross multiply
    85,331.20x = 127,892.98 × 60,378.44
  4. Step 4: Simplify right side
    85,331.20x = 7,721,978,619.35
  5. Step 5: Solve for x
    x = 7,721,978,619.35/85,331.20
  6. Step 6: Final answer
    x = 90,494.20

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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.