Home / 71,429.62-107,157.55-58,219.80

Finding the Fourth Proportional to 71,429.62, 107,157.55 and 58,219.80

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Solution

The fourth proportional to 71,429.62, 107,157.55 and 58,219.80 is: 87,340.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,429.62 : 107,157.55 = 58,219.80 : x
  2. Step 2: Convert to fraction form
    71,429.62/107,157.55 = 58,219.80/x
  3. Step 3: Cross multiply
    71,429.62x = 107,157.55 × 58,219.80
  4. Step 4: Simplify right side
    71,429.62x = 6,238,690,783.02
  5. Step 5: Solve for x
    x = 6,238,690,783.02/71,429.62
  6. Step 6: Final answer
    x = 87,340.39

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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.