Home / 53,620.40-80,414.93-20,316.44

Finding the Fourth Proportional to 53,620.40, 80,414.93 and 20,316.44

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Solution

The fourth proportional to 53,620.40, 80,414.93 and 20,316.44 is: 30,468.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,620.40 : 80,414.93 = 20,316.44 : x
  2. Step 2: Convert to fraction form
    53,620.40/80,414.93 = 20,316.44/x
  3. Step 3: Cross multiply
    53,620.40x = 80,414.93 × 20,316.44
  4. Step 4: Simplify right side
    53,620.40x = 1,633,744,596.79
  5. Step 5: Solve for x
    x = 1,633,744,596.79/53,620.40
  6. Step 6: Final answer
    x = 30,468.72

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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.