Home / 40,163.72-55,399.95-31,652.64

Finding the Fourth Proportional to 40,163.72, 55,399.95 and 31,652.64

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Solution

The fourth proportional to 40,163.72, 55,399.95 and 31,652.64 is: 43,660.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,163.72 : 55,399.95 = 31,652.64 : x
  2. Step 2: Convert to fraction form
    40,163.72/55,399.95 = 31,652.64/x
  3. Step 3: Cross multiply
    40,163.72x = 55,399.95 × 31,652.64
  4. Step 4: Simplify right side
    40,163.72x = 1,753,554,673.37
  5. Step 5: Solve for x
    x = 1,753,554,673.37/40,163.72
  6. Step 6: Final answer
    x = 43,660.17

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1.5x scale

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.