Home / 71,667.87-107,501.19-18,359.75

Finding the Fourth Proportional to 71,667.87, 107,501.19 and 18,359.75

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Solution

The fourth proportional to 71,667.87, 107,501.19 and 18,359.75 is: 27,539.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,667.87 : 107,501.19 = 18,359.75 : x
  2. Step 2: Convert to fraction form
    71,667.87/107,501.19 = 18,359.75/x
  3. Step 3: Cross multiply
    71,667.87x = 107,501.19 × 18,359.75
  4. Step 4: Simplify right side
    71,667.87x = 1,973,694,435.60
  5. Step 5: Solve for x
    x = 1,973,694,435.60/71,667.87
  6. Step 6: Final answer
    x = 27,539.46

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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.