Home / 85,239.54-127,844.73-38,481.48

Finding the Fourth Proportional to 85,239.54, 127,844.73 and 38,481.48

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Solution

The fourth proportional to 85,239.54, 127,844.73 and 38,481.48 is: 57,715.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,239.54 : 127,844.73 = 38,481.48 : x
  2. Step 2: Convert to fraction form
    85,239.54/127,844.73 = 38,481.48/x
  3. Step 3: Cross multiply
    85,239.54x = 127,844.73 × 38,481.48
  4. Step 4: Simplify right side
    85,239.54x = 4,919,654,420.60
  5. Step 5: Solve for x
    x = 4,919,654,420.60/85,239.54
  6. Step 6: Final answer
    x = 57,715.64

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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.