Home / 71,591.96-98,807.68-51,515.30

Finding the Fourth Proportional to 71,591.96, 98,807.68 and 51,515.30

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Solution

The fourth proportional to 71,591.96, 98,807.68 and 51,515.30 is: 71,098.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,591.96 : 98,807.68 = 51,515.30 : x
  2. Step 2: Convert to fraction form
    71,591.96/98,807.68 = 51,515.30/x
  3. Step 3: Cross multiply
    71,591.96x = 98,807.68 × 51,515.30
  4. Step 4: Simplify right side
    71,591.96x = 5,090,107,588.92
  5. Step 5: Solve for x
    x = 5,090,107,588.92/71,591.96
  6. Step 6: Final answer
    x = 71,098.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.