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Finding the Fourth Proportional to 47,367.60, 65,367 and 28,500.72

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Solution

The fourth proportional to 47,367.60, 65,367 and 28,500.72 is: 39,330.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,367.60 : 65,367 = 28,500.72 : x
  2. Step 2: Convert to fraction form
    47,367.60/65,367 = 28,500.72/x
  3. Step 3: Cross multiply
    47,367.60x = 65,367 × 28,500.72
  4. Step 4: Simplify right side
    47,367.60x = 1,863,006,564.24
  5. Step 5: Solve for x
    x = 1,863,006,564.24/47,367.60
  6. Step 6: Final answer
    x = 39,330.82

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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.