Home / 45,241.55-67,840.39-13,645.78

Finding the Fourth Proportional to 45,241.55, 67,840.39 and 13,645.78

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Solution

The fourth proportional to 45,241.55, 67,840.39 and 13,645.78 is: 20,462.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,241.55 : 67,840.39 = 13,645.78 : x
  2. Step 2: Convert to fraction form
    45,241.55/67,840.39 = 13,645.78/x
  3. Step 3: Cross multiply
    45,241.55x = 67,840.39 × 13,645.78
  4. Step 4: Simplify right side
    45,241.55x = 925,735,304.49
  5. Step 5: Solve for x
    x = 925,735,304.49/45,241.55
  6. Step 6: Final answer
    x = 20,462.06

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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.