Home / 53,819.55-80,719.61-20,532.20

Finding the Fourth Proportional to 53,819.55, 80,719.61 and 20,532.20

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Solution

The fourth proportional to 53,819.55, 80,719.61 and 20,532.20 is: 30,794.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,819.55 : 80,719.61 = 20,532.20 : x
  2. Step 2: Convert to fraction form
    53,819.55/80,719.61 = 20,532.20/x
  3. Step 3: Cross multiply
    53,819.55x = 80,719.61 × 20,532.20
  4. Step 4: Simplify right side
    53,819.55x = 1,657,350,670.18
  5. Step 5: Solve for x
    x = 1,657,350,670.18/53,819.55
  6. Step 6: Final answer
    x = 30,794.58

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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.