Home / 81,226.06-112,091.65-45,415.96

Finding the Fourth Proportional to 81,226.06, 112,091.65 and 45,415.96

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Solution

The fourth proportional to 81,226.06, 112,091.65 and 45,415.96 is: 62,673.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,226.06 : 112,091.65 = 45,415.96 : x
  2. Step 2: Convert to fraction form
    81,226.06/112,091.65 = 45,415.96/x
  3. Step 3: Cross multiply
    81,226.06x = 112,091.65 × 45,415.96
  4. Step 4: Simplify right side
    81,226.06x = 5,090,749,892.73
  5. Step 5: Solve for x
    x = 5,090,749,892.73/81,226.06
  6. Step 6: Final answer
    x = 62,673.85

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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.