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Finding the Fourth Proportional to 61,807, 85,293.66 and 33,512.68

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Solution

The fourth proportional to 61,807, 85,293.66 and 33,512.68 is: 46,247.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,807 : 85,293.66 = 33,512.68 : x
  2. Step 2: Convert to fraction form
    61,807/85,293.66 = 33,512.68/x
  3. Step 3: Cross multiply
    61,807x = 85,293.66 × 33,512.68
  4. Step 4: Simplify right side
    61,807x = 2,858,419,133.61
  5. Step 5: Solve for x
    x = 2,858,419,133.61/61,807
  6. Step 6: Final answer
    x = 46,247.50

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.