Home / 65,640.97-90,548.06-43,016.45

Finding the Fourth Proportional to 65,640.97, 90,548.06 and 43,016.45

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Solution

The fourth proportional to 65,640.97, 90,548.06 and 43,016.45 is: 59,338.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,640.97 : 90,548.06 = 43,016.45 : x
  2. Step 2: Convert to fraction form
    65,640.97/90,548.06 = 43,016.45/x
  3. Step 3: Cross multiply
    65,640.97x = 90,548.06 × 43,016.45
  4. Step 4: Simplify right side
    65,640.97x = 3,895,056,268.19
  5. Step 5: Solve for x
    x = 3,895,056,268.19/65,640.97
  6. Step 6: Final answer
    x = 59,338.80

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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.