Home / 53,406.32-80,109.48-18,345.74

Finding the Fourth Proportional to 53,406.32, 80,109.48 and 18,345.74

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Solution

The fourth proportional to 53,406.32, 80,109.48 and 18,345.74 is: 27,518.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,406.32 : 80,109.48 = 18,345.74 : x
  2. Step 2: Convert to fraction form
    53,406.32/80,109.48 = 18,345.74/x
  3. Step 3: Cross multiply
    53,406.32x = 80,109.48 × 18,345.74
  4. Step 4: Simplify right side
    53,406.32x = 1,469,667,691.62
  5. Step 5: Solve for x
    x = 1,469,667,691.62/53,406.32
  6. Step 6: Final answer
    x = 27,518.61

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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.