Home / 40,667.82-60,977.62-12,579.56

Finding the Fourth Proportional to 40,667.82, 60,977.62 and 12,579.56

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Solution

The fourth proportional to 40,667.82, 60,977.62 and 12,579.56 is: 18,861.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,667.82 : 60,977.62 = 12,579.56 : x
  2. Step 2: Convert to fraction form
    40,667.82/60,977.62 = 12,579.56/x
  3. Step 3: Cross multiply
    40,667.82x = 60,977.62 × 12,579.56
  4. Step 4: Simplify right side
    40,667.82x = 767,071,629.45
  5. Step 5: Solve for x
    x = 767,071,629.45/40,667.82
  6. Step 6: Final answer
    x = 18,861.88

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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.