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Finding the Fourth Proportional to 66,889.49, 100,350.98 and 47,206.49

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Solution

The fourth proportional to 66,889.49, 100,350.98 and 47,206.49 is: 70,821.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,889.49 : 100,350.98 = 47,206.49 : x
  2. Step 2: Convert to fraction form
    66,889.49/100,350.98 = 47,206.49/x
  3. Step 3: Cross multiply
    66,889.49x = 100,350.98 × 47,206.49
  4. Step 4: Simplify right side
    66,889.49x = 4,737,217,533.86
  5. Step 5: Solve for x
    x = 4,737,217,533.86/66,889.49
  6. Step 6: Final answer
    x = 70,821.55

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.