Home / 74,014.20-111,021.30-72,264.60

Finding the Fourth Proportional to 74,014.20, 111,021.30 and 72,264.60

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Solution

The fourth proportional to 74,014.20, 111,021.30 and 72,264.60 is: 108,396.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,014.20 : 111,021.30 = 72,264.60 : x
  2. Step 2: Convert to fraction form
    74,014.20/111,021.30 = 72,264.60/x
  3. Step 3: Cross multiply
    74,014.20x = 111,021.30 × 72,264.60
  4. Step 4: Simplify right side
    74,014.20x = 8,022,909,835.98
  5. Step 5: Solve for x
    x = 8,022,909,835.98/74,014.20
  6. Step 6: Final answer
    x = 108,396.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.