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Finding the Fourth Proportional to 74,173.53, 102,369.92 and 42,344.31

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Solution

The fourth proportional to 74,173.53, 102,369.92 and 42,344.31 is: 58,441.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,173.53 : 102,369.92 = 42,344.31 : x
  2. Step 2: Convert to fraction form
    74,173.53/102,369.92 = 42,344.31/x
  3. Step 3: Cross multiply
    74,173.53x = 102,369.92 × 42,344.31
  4. Step 4: Simplify right side
    74,173.53x = 4,334,783,415.43
  5. Step 5: Solve for x
    x = 4,334,783,415.43/74,173.53
  6. Step 6: Final answer
    x = 58,441.11

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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.