Home / 53,433.52-80,134.62-20,129.56

Finding the Fourth Proportional to 53,433.52, 80,134.62 and 20,129.56

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Solution

The fourth proportional to 53,433.52, 80,134.62 and 20,129.56 is: 30,188.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,433.52 : 80,134.62 = 20,129.56 : x
  2. Step 2: Convert to fraction form
    53,433.52/80,134.62 = 20,129.56/x
  3. Step 3: Cross multiply
    53,433.52x = 80,134.62 × 20,129.56
  4. Step 4: Simplify right side
    53,433.52x = 1,613,074,641.37
  5. Step 5: Solve for x
    x = 1,613,074,641.37/53,433.52
  6. Step 6: Final answer
    x = 30,188.44

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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.