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Finding the Fourth Proportional to 72,037.26, 108,057.78 and 19,446.57

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Solution

The fourth proportional to 72,037.26, 108,057.78 and 19,446.57 is: 29,170.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,037.26 : 108,057.78 = 19,446.57 : x
  2. Step 2: Convert to fraction form
    72,037.26/108,057.78 = 19,446.57/x
  3. Step 3: Cross multiply
    72,037.26x = 108,057.78 × 19,446.57
  4. Step 4: Simplify right side
    72,037.26x = 2,101,353,182.81
  5. Step 5: Solve for x
    x = 2,101,353,182.81/72,037.26
  6. Step 6: Final answer
    x = 29,170.37

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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.