Home / 71,431.60-106,972.44-50,319.76

Finding the Fourth Proportional to 71,431.60, 106,972.44 and 50,319.76

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Solution

The fourth proportional to 71,431.60, 106,972.44 and 50,319.76 is: 75,356.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,431.60 : 106,972.44 = 50,319.76 : x
  2. Step 2: Convert to fraction form
    71,431.60/106,972.44 = 50,319.76/x
  3. Step 3: Cross multiply
    71,431.60x = 106,972.44 × 50,319.76
  4. Step 4: Simplify right side
    71,431.60x = 5,382,827,507.41
  5. Step 5: Solve for x
    x = 5,382,827,507.41/71,431.60
  6. Step 6: Final answer
    x = 75,356.39

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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.