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Finding the Fourth Proportional to 53,226.72, 79,857.90 and 19,950.30

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Solution

The fourth proportional to 53,226.72, 79,857.90 and 19,950.30 is: 29,932.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,226.72 : 79,857.90 = 19,950.30 : x
  2. Step 2: Convert to fraction form
    53,226.72/79,857.90 = 19,950.30/x
  3. Step 3: Cross multiply
    53,226.72x = 79,857.90 × 19,950.30
  4. Step 4: Simplify right side
    53,226.72x = 1,593,189,062.37
  5. Step 5: Solve for x
    x = 1,593,189,062.37/53,226.72
  6. Step 6: Final answer
    x = 29,932.13

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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.