Home / 81,912.78-113,027.45-46,100.66

Finding the Fourth Proportional to 81,912.78, 113,027.45 and 46,100.66

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Solution

The fourth proportional to 81,912.78, 113,027.45 and 46,100.66 is: 63,612.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,912.78 : 113,027.45 = 46,100.66 : x
  2. Step 2: Convert to fraction form
    81,912.78/113,027.45 = 46,100.66/x
  3. Step 3: Cross multiply
    81,912.78x = 113,027.45 × 46,100.66
  4. Step 4: Simplify right side
    81,912.78x = 5,210,639,247.48
  5. Step 5: Solve for x
    x = 5,210,639,247.48/81,912.78
  6. Step 6: Final answer
    x = 63,612.04

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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.