Home / 85,349.21-127,982.86-40,333.10

Finding the Fourth Proportional to 85,349.21, 127,982.86 and 40,333.10

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Solution

The fourth proportional to 85,349.21, 127,982.86 and 40,333.10 is: 60,480.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,349.21 : 127,982.86 = 40,333.10 : x
  2. Step 2: Convert to fraction form
    85,349.21/127,982.86 = 40,333.10/x
  3. Step 3: Cross multiply
    85,349.21x = 127,982.86 × 40,333.10
  4. Step 4: Simplify right side
    85,349.21x = 5,161,944,749.92
  5. Step 5: Solve for x
    x = 5,161,944,749.92/85,349.21
  6. Step 6: Final answer
    x = 60,480.29

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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.