Home / 53,163.12-79,744.64-15,723.68

Finding the Fourth Proportional to 53,163.12, 79,744.64 and 15,723.68

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Solution

The fourth proportional to 53,163.12, 79,744.64 and 15,723.68 is: 23,585.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,163.12 : 79,744.64 = 15,723.68 : x
  2. Step 2: Convert to fraction form
    53,163.12/79,744.64 = 15,723.68/x
  3. Step 3: Cross multiply
    53,163.12x = 79,744.64 × 15,723.68
  4. Step 4: Simplify right side
    53,163.12x = 1,253,879,201.08
  5. Step 5: Solve for x
    x = 1,253,879,201.08/53,163.12
  6. Step 6: Final answer
    x = 23,585.51

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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.