Home / 55,628.09-83,447.25-18,188.36

Finding the Fourth Proportional to 55,628.09, 83,447.25 and 18,188.36

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Solution

The fourth proportional to 55,628.09, 83,447.25 and 18,188.36 is: 27,284.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,628.09 : 83,447.25 = 18,188.36 : x
  2. Step 2: Convert to fraction form
    55,628.09/83,447.25 = 18,188.36/x
  3. Step 3: Cross multiply
    55,628.09x = 83,447.25 × 18,188.36
  4. Step 4: Simplify right side
    55,628.09x = 1,517,768,206.77
  5. Step 5: Solve for x
    x = 1,517,768,206.77/55,628.09
  6. Step 6: Final answer
    x = 27,284.21

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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.