Home / 71,568.20-107,409-37,858.16

Finding the Fourth Proportional to 71,568.20, 107,409 and 37,858.16

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Solution

The fourth proportional to 71,568.20, 107,409 and 37,858.16 is: 56,817.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,568.20 : 107,409 = 37,858.16 : x
  2. Step 2: Convert to fraction form
    71,568.20/107,409 = 37,858.16/x
  3. Step 3: Cross multiply
    71,568.20x = 107,409 × 37,858.16
  4. Step 4: Simplify right side
    71,568.20x = 4,066,307,107.44
  5. Step 5: Solve for x
    x = 4,066,307,107.44/71,568.20
  6. Step 6: Final answer
    x = 56,817.23

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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.