Home / 57,279.97-85,982.81-45,509.41

Finding the Fourth Proportional to 57,279.97, 85,982.81 and 45,509.41

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Solution

The fourth proportional to 57,279.97, 85,982.81 and 45,509.41 is: 68,314.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,279.97 : 85,982.81 = 45,509.41 : x
  2. Step 2: Convert to fraction form
    57,279.97/85,982.81 = 45,509.41/x
  3. Step 3: Cross multiply
    57,279.97x = 85,982.81 × 45,509.41
  4. Step 4: Simplify right side
    57,279.97x = 3,913,026,523.33
  5. Step 5: Solve for x
    x = 3,913,026,523.33/57,279.97
  6. Step 6: Final answer
    x = 68,314.05

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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.