Home / 85,346.72-127,942.64-29,912.48

Finding the Fourth Proportional to 85,346.72, 127,942.64 and 29,912.48

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Solution

The fourth proportional to 85,346.72, 127,942.64 and 29,912.48 is: 44,841.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,346.72 : 127,942.64 = 29,912.48 : x
  2. Step 2: Convert to fraction form
    85,346.72/127,942.64 = 29,912.48/x
  3. Step 3: Cross multiply
    85,346.72x = 127,942.64 × 29,912.48
  4. Step 4: Simplify right side
    85,346.72x = 3,827,081,660.15
  5. Step 5: Solve for x
    x = 3,827,081,660.15/85,346.72
  6. Step 6: Final answer
    x = 44,841.58

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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.