Home / 85,223.28-117,608.52-49,434.48

Finding the Fourth Proportional to 85,223.28, 117,608.52 and 49,434.48

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Solution

The fourth proportional to 85,223.28, 117,608.52 and 49,434.48 is: 68,219.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,223.28 : 117,608.52 = 49,434.48 : x
  2. Step 2: Convert to fraction form
    85,223.28/117,608.52 = 49,434.48/x
  3. Step 3: Cross multiply
    85,223.28x = 117,608.52 × 49,434.48
  4. Step 4: Simplify right side
    85,223.28x = 5,813,916,029.77
  5. Step 5: Solve for x
    x = 5,813,916,029.77/85,223.28
  6. Step 6: Final answer
    x = 68,219.81

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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.