Home / 53,816.33-80,680.75-18,780.59

Finding the Fourth Proportional to 53,816.33, 80,680.75 and 18,780.59

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Solution

The fourth proportional to 53,816.33, 80,680.75 and 18,780.59 is: 28,155.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,816.33 : 80,680.75 = 18,780.59 : x
  2. Step 2: Convert to fraction form
    53,816.33/80,680.75 = 18,780.59/x
  3. Step 3: Cross multiply
    53,816.33x = 80,680.75 × 18,780.59
  4. Step 4: Simplify right side
    53,816.33x = 1,515,231,636.29
  5. Step 5: Solve for x
    x = 1,515,231,636.29/53,816.33
  6. Step 6: Final answer
    x = 28,155.61

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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.