Home / 85,318.20-127,792.62-61,893

Finding the Fourth Proportional to 85,318.20, 127,792.62 and 61,893

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Solution

The fourth proportional to 85,318.20, 127,792.62 and 61,893 is: 92,705.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,318.20 : 127,792.62 = 61,893 : x
  2. Step 2: Convert to fraction form
    85,318.20/127,792.62 = 61,893/x
  3. Step 3: Cross multiply
    85,318.20x = 127,792.62 × 61,893
  4. Step 4: Simplify right side
    85,318.20x = 7,909,468,629.66
  5. Step 5: Solve for x
    x = 7,909,468,629.66/85,318.20
  6. Step 6: Final answer
    x = 92,705.53

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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.