Home / 50,147.47-75,221.19-20,545.09

Finding the Fourth Proportional to 50,147.47, 75,221.19 and 20,545.09

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Solution

The fourth proportional to 50,147.47, 75,221.19 and 20,545.09 is: 30,817.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,147.47 : 75,221.19 = 20,545.09 : x
  2. Step 2: Convert to fraction form
    50,147.47/75,221.19 = 20,545.09/x
  3. Step 3: Cross multiply
    50,147.47x = 75,221.19 × 20,545.09
  4. Step 4: Simplify right side
    50,147.47x = 1,545,426,118.46
  5. Step 5: Solve for x
    x = 1,545,426,118.46/50,147.47
  6. Step 6: Final answer
    x = 30,817.63

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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.