Home / 47,857.44-71,611.20-28,145.28

Finding the Fourth Proportional to 47,857.44, 71,611.20 and 28,145.28

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Solution

The fourth proportional to 47,857.44, 71,611.20 and 28,145.28 is: 42,115.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,857.44 : 71,611.20 = 28,145.28 : x
  2. Step 2: Convert to fraction form
    47,857.44/71,611.20 = 28,145.28/x
  3. Step 3: Cross multiply
    47,857.44x = 71,611.20 × 28,145.28
  4. Step 4: Simplify right side
    47,857.44x = 2,015,517,275.14
  5. Step 5: Solve for x
    x = 2,015,517,275.14/47,857.44
  6. Step 6: Final answer
    x = 42,115.02

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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.