Home / 74,422.58-102,704.28-40,431.74

Finding the Fourth Proportional to 74,422.58, 102,704.28 and 40,431.74

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Solution

The fourth proportional to 74,422.58, 102,704.28 and 40,431.74 is: 55,796.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,422.58 : 102,704.28 = 40,431.74 : x
  2. Step 2: Convert to fraction form
    74,422.58/102,704.28 = 40,431.74/x
  3. Step 3: Cross multiply
    74,422.58x = 102,704.28 × 40,431.74
  4. Step 4: Simplify right side
    74,422.58x = 4,152,512,745.85
  5. Step 5: Solve for x
    x = 4,152,512,745.85/74,422.58
  6. Step 6: Final answer
    x = 55,796.41

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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.