Home / 47,665.80-65,629.26-40,480.74

Finding the Fourth Proportional to 47,665.80, 65,629.26 and 40,480.74

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Solution

The fourth proportional to 47,665.80, 65,629.26 and 40,480.74 is: 55,736.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,665.80 : 65,629.26 = 40,480.74 : x
  2. Step 2: Convert to fraction form
    47,665.80/65,629.26 = 40,480.74/x
  3. Step 3: Cross multiply
    47,665.80x = 65,629.26 × 40,480.74
  4. Step 4: Simplify right side
    47,665.80x = 2,656,721,010.45
  5. Step 5: Solve for x
    x = 2,656,721,010.45/47,665.80
  6. Step 6: Final answer
    x = 55,736.42

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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.