Home / 53,971.08-80,992.56-18,910.68

Finding the Fourth Proportional to 53,971.08, 80,992.56 and 18,910.68

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Solution

The fourth proportional to 53,971.08, 80,992.56 and 18,910.68 is: 28,378.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,971.08 : 80,992.56 = 18,910.68 : x
  2. Step 2: Convert to fraction form
    53,971.08/80,992.56 = 18,910.68/x
  3. Step 3: Cross multiply
    53,971.08x = 80,992.56 × 18,910.68
  4. Step 4: Simplify right side
    53,971.08x = 1,531,624,384.54
  5. Step 5: Solve for x
    x = 1,531,624,384.54/53,971.08
  6. Step 6: Final answer
    x = 28,378.61

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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.