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Finding the Fourth Proportional to 72,043.07, 108,064.60 and 36,960.35

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Solution

The fourth proportional to 72,043.07, 108,064.60 and 36,960.35 is: 55,440.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,043.07 : 108,064.60 = 36,960.35 : x
  2. Step 2: Convert to fraction form
    72,043.07/108,064.60 = 36,960.35/x
  3. Step 3: Cross multiply
    72,043.07x = 108,064.60 × 36,960.35
  4. Step 4: Simplify right side
    72,043.07x = 3,994,104,805.89
  5. Step 5: Solve for x
    x = 3,994,104,805.89/72,043.07
  6. Step 6: Final answer
    x = 55,440.52

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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.