Home / 81,835.98-112,949.17-51,223.28

Finding the Fourth Proportional to 81,835.98, 112,949.17 and 51,223.28

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Solution

The fourth proportional to 81,835.98, 112,949.17 and 51,223.28 is: 70,697.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,835.98 : 112,949.17 = 51,223.28 : x
  2. Step 2: Convert to fraction form
    81,835.98/112,949.17 = 51,223.28/x
  3. Step 3: Cross multiply
    81,835.98x = 112,949.17 × 51,223.28
  4. Step 4: Simplify right side
    81,835.98x = 5,785,626,960.68
  5. Step 5: Solve for x
    x = 5,785,626,960.68/81,835.98
  6. Step 6: Final answer
    x = 70,697.84

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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.