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Finding the Fourth Proportional to 72,524.76, 108,788.34 and 19,933.92

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Solution

The fourth proportional to 72,524.76, 108,788.34 and 19,933.92 is: 29,901.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,524.76 : 108,788.34 = 19,933.92 : x
  2. Step 2: Convert to fraction form
    72,524.76/108,788.34 = 19,933.92/x
  3. Step 3: Cross multiply
    72,524.76x = 108,788.34 × 19,933.92
  4. Step 4: Simplify right side
    72,524.76x = 2,168,578,066.49
  5. Step 5: Solve for x
    x = 2,168,578,066.49/72,524.76
  6. Step 6: Final answer
    x = 29,901.21

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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.