Home / 81,905.18-113,010.45-46,082.12

Finding the Fourth Proportional to 81,905.18, 113,010.45 and 46,082.12

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Solution

The fourth proportional to 81,905.18, 113,010.45 and 46,082.12 is: 63,582.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,905.18 : 113,010.45 = 46,082.12 : x
  2. Step 2: Convert to fraction form
    81,905.18/113,010.45 = 46,082.12/x
  3. Step 3: Cross multiply
    81,905.18x = 113,010.45 × 46,082.12
  4. Step 4: Simplify right side
    81,905.18x = 5,207,761,118.15
  5. Step 5: Solve for x
    x = 5,207,761,118.15/81,905.18
  6. Step 6: Final answer
    x = 63,582.81

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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.