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Finding the Fourth Proportional to 66,697.09, 100,045.81 and 27,254.21

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Solution

The fourth proportional to 66,697.09, 100,045.81 and 27,254.21 is: 40,881.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,697.09 : 100,045.81 = 27,254.21 : x
  2. Step 2: Convert to fraction form
    66,697.09/100,045.81 = 27,254.21/x
  3. Step 3: Cross multiply
    66,697.09x = 100,045.81 × 27,254.21
  4. Step 4: Simplify right side
    66,697.09x = 2,726,669,049.20
  5. Step 5: Solve for x
    x = 2,726,669,049.20/66,697.09
  6. Step 6: Final answer
    x = 40,881.38

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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.