Home / 53,620.90-80,415.68-20,316.94

Finding the Fourth Proportional to 53,620.90, 80,415.68 and 20,316.94

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Solution

The fourth proportional to 53,620.90, 80,415.68 and 20,316.94 is: 30,469.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,620.90 : 80,415.68 = 20,316.94 : x
  2. Step 2: Convert to fraction form
    53,620.90/80,415.68 = 20,316.94/x
  3. Step 3: Cross multiply
    53,620.90x = 80,415.68 × 20,316.94
  4. Step 4: Simplify right side
    53,620.90x = 1,633,800,545.62
  5. Step 5: Solve for x
    x = 1,633,800,545.62/53,620.90
  6. Step 6: Final answer
    x = 30,469.47

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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.