Home / 73,021.60-109,543.68-30,901.92

Finding the Fourth Proportional to 73,021.60, 109,543.68 and 30,901.92

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Solution

The fourth proportional to 73,021.60, 109,543.68 and 30,901.92 is: 46,357.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,021.60 : 109,543.68 = 30,901.92 : x
  2. Step 2: Convert to fraction form
    73,021.60/109,543.68 = 30,901.92/x
  3. Step 3: Cross multiply
    73,021.60x = 109,543.68 × 30,901.92
  4. Step 4: Simplify right side
    73,021.60x = 3,385,110,035.87
  5. Step 5: Solve for x
    x = 3,385,110,035.87/73,021.60
  6. Step 6: Final answer
    x = 46,357.65

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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.