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Finding the Fourth Proportional to 60,273.45, 90,398.63 and 20,822.40

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Solution

The fourth proportional to 60,273.45, 90,398.63 and 20,822.40 is: 31,229.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,273.45 : 90,398.63 = 20,822.40 : x
  2. Step 2: Convert to fraction form
    60,273.45/90,398.63 = 20,822.40/x
  3. Step 3: Cross multiply
    60,273.45x = 90,398.63 × 20,822.40
  4. Step 4: Simplify right side
    60,273.45x = 1,882,316,485.37
  5. Step 5: Solve for x
    x = 1,882,316,485.37/60,273.45
  6. Step 6: Final answer
    x = 31,229.61

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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.