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Finding the Fourth Proportional to 66,881.40, 100,244.22 and 49,187.16

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Solution

The fourth proportional to 66,881.40, 100,244.22 and 49,187.16 is: 73,723.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,881.40 : 100,244.22 = 49,187.16 : x
  2. Step 2: Convert to fraction form
    66,881.40/100,244.22 = 49,187.16/x
  3. Step 3: Cross multiply
    66,881.40x = 100,244.22 × 49,187.16
  4. Step 4: Simplify right side
    66,881.40x = 4,930,728,488.22
  5. Step 5: Solve for x
    x = 4,930,728,488.22/66,881.40
  6. Step 6: Final answer
    x = 73,723.46

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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.