Home / 55,631.88-83,447.06-13,512.28

Finding the Fourth Proportional to 55,631.88, 83,447.06 and 13,512.28

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Solution

The fourth proportional to 55,631.88, 83,447.06 and 13,512.28 is: 20,268.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,631.88 : 83,447.06 = 13,512.28 : x
  2. Step 2: Convert to fraction form
    55,631.88/83,447.06 = 13,512.28/x
  3. Step 3: Cross multiply
    55,631.88x = 83,447.06 × 13,512.28
  4. Step 4: Simplify right side
    55,631.88x = 1,127,560,039.90
  5. Step 5: Solve for x
    x = 1,127,560,039.90/55,631.88
  6. Step 6: Final answer
    x = 20,268.24

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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.