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Finding the Fourth Proportional to 45,201.80, 67,803.08 and 11,926.60

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Solution

The fourth proportional to 45,201.80, 67,803.08 and 11,926.60 is: 17,890.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,201.80 : 67,803.08 = 11,926.60 : x
  2. Step 2: Convert to fraction form
    45,201.80/67,803.08 = 11,926.60/x
  3. Step 3: Cross multiply
    45,201.80x = 67,803.08 × 11,926.60
  4. Step 4: Simplify right side
    45,201.80x = 808,660,213.93
  5. Step 5: Solve for x
    x = 808,660,213.93/45,201.80
  6. Step 6: Final answer
    x = 17,890.00

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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.