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Finding the Fourth Proportional to 72,551.26, 100,121.85 and 43,866.82

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Solution

The fourth proportional to 72,551.26, 100,121.85 and 43,866.82 is: 60,536.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,551.26 : 100,121.85 = 43,866.82 : x
  2. Step 2: Convert to fraction form
    72,551.26/100,121.85 = 43,866.82/x
  3. Step 3: Cross multiply
    72,551.26x = 100,121.85 × 43,866.82
  4. Step 4: Simplify right side
    72,551.26x = 4,392,027,172.02
  5. Step 5: Solve for x
    x = 4,392,027,172.02/72,551.26
  6. Step 6: Final answer
    x = 60,536.88

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1.5x scale

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.