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Finding the Fourth Proportional to 65,367.47, 90,207.30 and 36,295.90

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Solution

The fourth proportional to 65,367.47, 90,207.30 and 36,295.90 is: 50,088.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,367.47 : 90,207.30 = 36,295.90 : x
  2. Step 2: Convert to fraction form
    65,367.47/90,207.30 = 36,295.90/x
  3. Step 3: Cross multiply
    65,367.47x = 90,207.30 × 36,295.90
  4. Step 4: Simplify right side
    65,367.47x = 3,274,155,049.33
  5. Step 5: Solve for x
    x = 3,274,155,049.33/65,367.47
  6. Step 6: Final answer
    x = 50,088.45

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.