Home / 81,835.56-112,996.62-63,899.46

Finding the Fourth Proportional to 81,835.56, 112,996.62 and 63,899.46

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Solution

The fourth proportional to 81,835.56, 112,996.62 and 63,899.46 is: 88,230.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,835.56 : 112,996.62 = 63,899.46 : x
  2. Step 2: Convert to fraction form
    81,835.56/112,996.62 = 63,899.46/x
  3. Step 3: Cross multiply
    81,835.56x = 112,996.62 × 63,899.46
  4. Step 4: Simplify right side
    81,835.56x = 7,220,422,999.83
  5. Step 5: Solve for x
    x = 7,220,422,999.83/81,835.56
  6. Step 6: Final answer
    x = 88,230.87

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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.