Home / 90,858.46-136,305.52-31,696.06

Finding the Fourth Proportional to 90,858.46, 136,305.52 and 31,696.06

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Solution

The fourth proportional to 90,858.46, 136,305.52 and 31,696.06 is: 47,550.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,858.46 : 136,305.52 = 31,696.06 : x
  2. Step 2: Convert to fraction form
    90,858.46/136,305.52 = 31,696.06/x
  3. Step 3: Cross multiply
    90,858.46x = 136,305.52 × 31,696.06
  4. Step 4: Simplify right side
    90,858.46x = 4,320,347,940.25
  5. Step 5: Solve for x
    x = 4,320,347,940.25/90,858.46
  6. Step 6: Final answer
    x = 47,550.31

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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.