Home / 74,422.44-102,704.58-40,890.60

Finding the Fourth Proportional to 74,422.44, 102,704.58 and 40,890.60

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Solution

The fourth proportional to 74,422.44, 102,704.58 and 40,890.60 is: 56,429.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,422.44 : 102,704.58 = 40,890.60 : x
  2. Step 2: Convert to fraction form
    74,422.44/102,704.58 = 40,890.60/x
  3. Step 3: Cross multiply
    74,422.44x = 102,704.58 × 40,890.60
  4. Step 4: Simplify right side
    74,422.44x = 4,199,651,898.95
  5. Step 5: Solve for x
    x = 4,199,651,898.95/74,422.44
  6. Step 6: Final answer
    x = 56,429.91

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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.