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Finding the Fourth Proportional to 52,900.88, 79,355.97 and 19,621.31

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Solution

The fourth proportional to 52,900.88, 79,355.97 and 19,621.31 is: 29,433.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,900.88 : 79,355.97 = 19,621.31 : x
  2. Step 2: Convert to fraction form
    52,900.88/79,355.97 = 19,621.31/x
  3. Step 3: Cross multiply
    52,900.88x = 79,355.97 × 19,621.31
  4. Step 4: Simplify right side
    52,900.88x = 1,557,067,690.94
  5. Step 5: Solve for x
    x = 1,557,067,690.94/52,900.88
  6. Step 6: Final answer
    x = 29,433.68

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1.5x scale

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.