Home / 74,741.94-103,140.68-40,749.62

Finding the Fourth Proportional to 74,741.94, 103,140.68 and 40,749.62

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Solution

The fourth proportional to 74,741.94, 103,140.68 and 40,749.62 is: 56,232.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,741.94 : 103,140.68 = 40,749.62 : x
  2. Step 2: Convert to fraction form
    74,741.94/103,140.68 = 40,749.62/x
  3. Step 3: Cross multiply
    74,741.94x = 103,140.68 × 40,749.62
  4. Step 4: Simplify right side
    74,741.94x = 4,202,942,797.09
  5. Step 5: Solve for x
    x = 4,202,942,797.09/74,741.94
  6. Step 6: Final answer
    x = 56,232.72

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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.