Home / 71,940.53-107,941.88-38,621.70

Finding the Fourth Proportional to 71,940.53, 107,941.88 and 38,621.70

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Solution

The fourth proportional to 71,940.53, 107,941.88 and 38,621.70 is: 57,949.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,940.53 : 107,941.88 = 38,621.70 : x
  2. Step 2: Convert to fraction form
    71,940.53/107,941.88 = 38,621.70/x
  3. Step 3: Cross multiply
    71,940.53x = 107,941.88 × 38,621.70
  4. Step 4: Simplify right side
    71,940.53x = 4,168,899,003.35
  5. Step 5: Solve for x
    x = 4,168,899,003.35/71,940.53
  6. Step 6: Final answer
    x = 57,949.24

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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.