Home / 81,629.91-112,652.24-47,660.13

Finding the Fourth Proportional to 81,629.91, 112,652.24 and 47,660.13

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Solution

The fourth proportional to 81,629.91, 112,652.24 and 47,660.13 is: 65,772.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,629.91 : 112,652.24 = 47,660.13 : x
  2. Step 2: Convert to fraction form
    81,629.91/112,652.24 = 47,660.13/x
  3. Step 3: Cross multiply
    81,629.91x = 112,652.24 × 47,660.13
  4. Step 4: Simplify right side
    81,629.91x = 5,369,020,164.89
  5. Step 5: Solve for x
    x = 5,369,020,164.89/81,629.91
  6. Step 6: Final answer
    x = 65,772.71

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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.