Home / 81,837.06-112,998.69-63,900.96

Finding the Fourth Proportional to 81,837.06, 112,998.69 and 63,900.96

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Solution

The fourth proportional to 81,837.06, 112,998.69 and 63,900.96 is: 88,232.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,837.06 : 112,998.69 = 63,900.96 : x
  2. Step 2: Convert to fraction form
    81,837.06/112,998.69 = 63,900.96/x
  3. Step 3: Cross multiply
    81,837.06x = 112,998.69 × 63,900.96
  4. Step 4: Simplify right side
    81,837.06x = 7,220,724,769.74
  5. Step 5: Solve for x
    x = 7,220,724,769.74/81,837.06
  6. Step 6: Final answer
    x = 88,232.94

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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.