Home / 53,611.20-73,972.38-30,949.80

Finding the Fourth Proportional to 53,611.20, 73,972.38 and 30,949.80

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Solution

The fourth proportional to 53,611.20, 73,972.38 and 30,949.80 is: 42,704.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,611.20 : 73,972.38 = 30,949.80 : x
  2. Step 2: Convert to fraction form
    53,611.20/73,972.38 = 30,949.80/x
  3. Step 3: Cross multiply
    53,611.20x = 73,972.38 × 30,949.80
  4. Step 4: Simplify right side
    53,611.20x = 2,289,430,366.52
  5. Step 5: Solve for x
    x = 2,289,430,366.52/53,611.20
  6. Step 6: Final answer
    x = 42,704.33

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1.5x scale

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.