Home / 53,190.86-79,788.31-19,907.42

Finding the Fourth Proportional to 53,190.86, 79,788.31 and 19,907.42

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Solution

The fourth proportional to 53,190.86, 79,788.31 and 19,907.42 is: 29,861.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,190.86 : 79,788.31 = 19,907.42 : x
  2. Step 2: Convert to fraction form
    53,190.86/79,788.31 = 19,907.42/x
  3. Step 3: Cross multiply
    53,190.86x = 79,788.31 × 19,907.42
  4. Step 4: Simplify right side
    53,190.86x = 1,588,378,949.55
  5. Step 5: Solve for x
    x = 1,588,378,949.55/53,190.86
  6. Step 6: Final answer
    x = 29,861.88

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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.