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Finding the Fourth Proportional to 72,151.77, 108,227.64 and 19,559.88

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Solution

The fourth proportional to 72,151.77, 108,227.64 and 19,559.88 is: 29,339.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,151.77 : 108,227.64 = 19,559.88 : x
  2. Step 2: Convert to fraction form
    72,151.77/108,227.64 = 19,559.88/x
  3. Step 3: Cross multiply
    72,151.77x = 108,227.64 × 19,559.88
  4. Step 4: Simplify right side
    72,151.77x = 2,116,919,651.08
  5. Step 5: Solve for x
    x = 2,116,919,651.08/72,151.77
  6. Step 6: Final answer
    x = 29,339.82

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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.