Home / 45,121.64-67,682.28-15,539.39

Finding the Fourth Proportional to 45,121.64, 67,682.28 and 15,539.39

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Solution

The fourth proportional to 45,121.64, 67,682.28 and 15,539.39 is: 23,309.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,121.64 : 67,682.28 = 15,539.39 : x
  2. Step 2: Convert to fraction form
    45,121.64/67,682.28 = 15,539.39/x
  3. Step 3: Cross multiply
    45,121.64x = 67,682.28 × 15,539.39
  4. Step 4: Simplify right side
    45,121.64x = 1,051,741,006.60
  5. Step 5: Solve for x
    x = 1,051,741,006.60/45,121.64
  6. Step 6: Final answer
    x = 23,309.02

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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.