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Finding the Fourth Proportional to 74,145.89, 102,314.85 and 43,926.12

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Solution

The fourth proportional to 74,145.89, 102,314.85 and 43,926.12 is: 60,614.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,145.89 : 102,314.85 = 43,926.12 : x
  2. Step 2: Convert to fraction form
    74,145.89/102,314.85 = 43,926.12/x
  3. Step 3: Cross multiply
    74,145.89x = 102,314.85 × 43,926.12
  4. Step 4: Simplify right side
    74,145.89x = 4,494,294,378.88
  5. Step 5: Solve for x
    x = 4,494,294,378.88/74,145.89
  6. Step 6: Final answer
    x = 60,614.21

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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.