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Finding the Fourth Proportional to 66,818.58, 100,140.39 and 27,329.46

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Solution

The fourth proportional to 66,818.58, 100,140.39 and 27,329.46 is: 40,958.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,818.58 : 100,140.39 = 27,329.46 : x
  2. Step 2: Convert to fraction form
    66,818.58/100,140.39 = 27,329.46/x
  3. Step 3: Cross multiply
    66,818.58x = 100,140.39 × 27,329.46
  4. Step 4: Simplify right side
    66,818.58x = 2,736,782,782.89
  5. Step 5: Solve for x
    x = 2,736,782,782.89/66,818.58
  6. Step 6: Final answer
    x = 40,958.41

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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.