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Finding the Fourth Proportional to 72,097.70, 108,146.49 and 52,500.92

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Solution

The fourth proportional to 72,097.70, 108,146.49 and 52,500.92 is: 78,751.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,097.70 : 108,146.49 = 52,500.92 : x
  2. Step 2: Convert to fraction form
    72,097.70/108,146.49 = 52,500.92/x
  3. Step 3: Cross multiply
    72,097.70x = 108,146.49 × 52,500.92
  4. Step 4: Simplify right side
    72,097.70x = 5,677,790,219.77
  5. Step 5: Solve for x
    x = 5,677,790,219.77/72,097.70
  6. Step 6: Final answer
    x = 78,751.34

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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.