Home / 55,724.75-83,600.09-18,788.75

Finding the Fourth Proportional to 55,724.75, 83,600.09 and 18,788.75

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Solution

The fourth proportional to 55,724.75, 83,600.09 and 18,788.75 is: 28,187.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,724.75 : 83,600.09 = 18,788.75 : x
  2. Step 2: Convert to fraction form
    55,724.75/83,600.09 = 18,788.75/x
  3. Step 3: Cross multiply
    55,724.75x = 83,600.09 × 18,788.75
  4. Step 4: Simplify right side
    55,724.75x = 1,570,741,097.04
  5. Step 5: Solve for x
    x = 1,570,741,097.04/55,724.75
  6. Step 6: Final answer
    x = 28,187.49

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1.5x scale

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.