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Finding the Fourth Proportional to 53,403.83, 80,121.81 and 15,965.12

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Solution

The fourth proportional to 53,403.83, 80,121.81 and 15,965.12 is: 23,952.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,403.83 : 80,121.81 = 15,965.12 : x
  2. Step 2: Convert to fraction form
    53,403.83/80,121.81 = 15,965.12/x
  3. Step 3: Cross multiply
    53,403.83x = 80,121.81 × 15,965.12
  4. Step 4: Simplify right side
    53,403.83x = 1,279,154,311.27
  5. Step 5: Solve for x
    x = 1,279,154,311.27/53,403.83
  6. Step 6: Final answer
    x = 23,952.48

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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.