Home / 55,718.37-83,518.86-18,268.68

Finding the Fourth Proportional to 55,718.37, 83,518.86 and 18,268.68

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Solution

The fourth proportional to 55,718.37, 83,518.86 and 18,268.68 is: 27,383.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,718.37 : 83,518.86 = 18,268.68 : x
  2. Step 2: Convert to fraction form
    55,718.37/83,518.86 = 18,268.68/x
  3. Step 3: Cross multiply
    55,718.37x = 83,518.86 × 18,268.68
  4. Step 4: Simplify right side
    55,718.37x = 1,525,779,327.30
  5. Step 5: Solve for x
    x = 1,525,779,327.30/55,718.37
  6. Step 6: Final answer
    x = 27,383.78

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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.