Home / 74,822.21-103,251.43-40,829.86

Finding the Fourth Proportional to 74,822.21, 103,251.43 and 40,829.86

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Solution

The fourth proportional to 74,822.21, 103,251.43 and 40,829.86 is: 56,343.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,822.21 : 103,251.43 = 40,829.86 : x
  2. Step 2: Convert to fraction form
    74,822.21/103,251.43 = 40,829.86/x
  3. Step 3: Cross multiply
    74,822.21x = 103,251.43 × 40,829.86
  4. Step 4: Simplify right side
    74,822.21x = 4,215,741,431.70
  5. Step 5: Solve for x
    x = 4,215,741,431.70/74,822.21
  6. Step 6: Final answer
    x = 56,343.45

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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.