Home / 53,811.36-80,717.52-18,750.96

Finding the Fourth Proportional to 53,811.36, 80,717.52 and 18,750.96

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Solution

The fourth proportional to 53,811.36, 80,717.52 and 18,750.96 is: 28,126.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,811.36 : 80,717.52 = 18,750.96 : x
  2. Step 2: Convert to fraction form
    53,811.36/80,717.52 = 18,750.96/x
  3. Step 3: Cross multiply
    53,811.36x = 80,717.52 × 18,750.96
  4. Step 4: Simplify right side
    53,811.36x = 1,513,530,988.82
  5. Step 5: Solve for x
    x = 1,513,530,988.82/53,811.36
  6. Step 6: Final answer
    x = 28,126.61

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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.