Home / 67,919.36-101,839.53-45,455.68

Finding the Fourth Proportional to 67,919.36, 101,839.53 and 45,455.68

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Solution

The fourth proportional to 67,919.36, 101,839.53 and 45,455.68 is: 68,157.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,919.36 : 101,839.53 = 45,455.68 : x
  2. Step 2: Convert to fraction form
    67,919.36/101,839.53 = 45,455.68/x
  3. Step 3: Cross multiply
    67,919.36x = 101,839.53 × 45,455.68
  4. Step 4: Simplify right side
    67,919.36x = 4,629,185,129.10
  5. Step 5: Solve for x
    x = 4,629,185,129.10/67,919.36
  6. Step 6: Final answer
    x = 68,157.08

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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.