Home / 51,471.18-71,024.26-28,811.44

Finding the Fourth Proportional to 51,471.18, 71,024.26 and 28,811.44

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Solution

The fourth proportional to 51,471.18, 71,024.26 and 28,811.44 is: 39,756.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,471.18 : 71,024.26 = 28,811.44 : x
  2. Step 2: Convert to fraction form
    51,471.18/71,024.26 = 28,811.44/x
  3. Step 3: Cross multiply
    51,471.18x = 71,024.26 × 28,811.44
  4. Step 4: Simplify right side
    51,471.18x = 2,046,311,205.53
  5. Step 5: Solve for x
    x = 2,046,311,205.53/51,471.18
  6. Step 6: Final answer
    x = 39,756.45

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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.