Home / 71,940.24-107,941.46-38,621.39

Finding the Fourth Proportional to 71,940.24, 107,941.46 and 38,621.39

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Solution

The fourth proportional to 71,940.24, 107,941.46 and 38,621.39 is: 57,948.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,940.24 : 107,941.46 = 38,621.39 : x
  2. Step 2: Convert to fraction form
    71,940.24/107,941.46 = 38,621.39/x
  3. Step 3: Cross multiply
    71,940.24x = 107,941.46 × 38,621.39
  4. Step 4: Simplify right side
    71,940.24x = 4,168,848,491.02
  5. Step 5: Solve for x
    x = 4,168,848,491.02/71,940.24
  6. Step 6: Final answer
    x = 57,948.77

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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.