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Finding the Fourth Proportional to 74,697.44, 103,081.11 and 40,706.21

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Solution

The fourth proportional to 74,697.44, 103,081.11 and 40,706.21 is: 56,173.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,697.44 : 103,081.11 = 40,706.21 : x
  2. Step 2: Convert to fraction form
    74,697.44/103,081.11 = 40,706.21/x
  3. Step 3: Cross multiply
    74,697.44x = 103,081.11 × 40,706.21
  4. Step 4: Simplify right side
    74,697.44x = 4,196,041,310.69
  5. Step 5: Solve for x
    x = 4,196,041,310.69/74,697.44
  6. Step 6: Final answer
    x = 56,173.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.