Home / 71,436.62-107,172.75-50,417.72

Finding the Fourth Proportional to 71,436.62, 107,172.75 and 50,417.72

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Solution

The fourth proportional to 71,436.62, 107,172.75 and 50,417.72 is: 75,639.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,436.62 : 107,172.75 = 50,417.72 : x
  2. Step 2: Convert to fraction form
    71,436.62/107,172.75 = 50,417.72/x
  3. Step 3: Cross multiply
    71,436.62x = 107,172.75 × 50,417.72
  4. Step 4: Simplify right side
    71,436.62x = 5,403,405,701.13
  5. Step 5: Solve for x
    x = 5,403,405,701.13/71,436.62
  6. Step 6: Final answer
    x = 75,639.16

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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.