Home / 55,331.40-82,997.10-38,418.60

Finding the Fourth Proportional to 55,331.40, 82,997.10 and 38,418.60

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Solution

The fourth proportional to 55,331.40, 82,997.10 and 38,418.60 is: 57,627.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,331.40 : 82,997.10 = 38,418.60 : x
  2. Step 2: Convert to fraction form
    55,331.40/82,997.10 = 38,418.60/x
  3. Step 3: Cross multiply
    55,331.40x = 82,997.10 × 38,418.60
  4. Step 4: Simplify right side
    55,331.40x = 3,188,632,386.06
  5. Step 5: Solve for x
    x = 3,188,632,386.06/55,331.40
  6. Step 6: Final answer
    x = 57,627.90

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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.