Home / 74,709.56-103,099.34-40,718.43

Finding the Fourth Proportional to 74,709.56, 103,099.34 and 40,718.43

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Solution

The fourth proportional to 74,709.56, 103,099.34 and 40,718.43 is: 56,191.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,709.56 : 103,099.34 = 40,718.43 : x
  2. Step 2: Convert to fraction form
    74,709.56/103,099.34 = 40,718.43/x
  3. Step 3: Cross multiply
    74,709.56x = 103,099.34 × 40,718.43
  4. Step 4: Simplify right side
    74,709.56x = 4,198,043,360.63
  5. Step 5: Solve for x
    x = 4,198,043,360.63/74,709.56
  6. Step 6: Final answer
    x = 56,191.51

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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.