Home / 55,632.36-83,447.78-13,512.75

Finding the Fourth Proportional to 55,632.36, 83,447.78 and 13,512.75

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Solution

The fourth proportional to 55,632.36, 83,447.78 and 13,512.75 is: 20,268.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,632.36 : 83,447.78 = 13,512.75 : x
  2. Step 2: Convert to fraction form
    55,632.36/83,447.78 = 13,512.75/x
  3. Step 3: Cross multiply
    55,632.36x = 83,447.78 × 13,512.75
  4. Step 4: Simplify right side
    55,632.36x = 1,127,608,921.63
  5. Step 5: Solve for x
    x = 1,127,608,921.63/55,632.36
  6. Step 6: Final answer
    x = 20,268.94

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.