Home / 49,829.60-74,764.56-20,239.76

Finding the Fourth Proportional to 49,829.60, 74,764.56 and 20,239.76

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Solution

The fourth proportional to 49,829.60, 74,764.56 and 20,239.76 is: 30,367.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,829.60 : 74,764.56 = 20,239.76 : x
  2. Step 2: Convert to fraction form
    49,829.60/74,764.56 = 20,239.76/x
  3. Step 3: Cross multiply
    49,829.60x = 74,764.56 × 20,239.76
  4. Step 4: Simplify right side
    49,829.60x = 1,513,216,750.91
  5. Step 5: Solve for x
    x = 1,513,216,750.91/49,829.60
  6. Step 6: Final answer
    x = 30,367.83

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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.