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Finding the Fourth Proportional to 45,459.01, 68,197.83 and 19,163.80

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Solution

The fourth proportional to 45,459.01, 68,197.83 and 19,163.80 is: 28,749.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,459.01 : 68,197.83 = 19,163.80 : x
  2. Step 2: Convert to fraction form
    45,459.01/68,197.83 = 19,163.80/x
  3. Step 3: Cross multiply
    45,459.01x = 68,197.83 × 19,163.80
  4. Step 4: Simplify right side
    45,459.01x = 1,306,929,574.55
  5. Step 5: Solve for x
    x = 1,306,929,574.55/45,459.01
  6. Step 6: Final answer
    x = 28,749.63

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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.