Home / 72,972.12-100,697.61-41,138.97

Finding the Fourth Proportional to 72,972.12, 100,697.61 and 41,138.97

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Solution

The fourth proportional to 72,972.12, 100,697.61 and 41,138.97 is: 56,769.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,972.12 : 100,697.61 = 41,138.97 : x
  2. Step 2: Convert to fraction form
    72,972.12/100,697.61 = 41,138.97/x
  3. Step 3: Cross multiply
    72,972.12x = 100,697.61 × 41,138.97
  4. Step 4: Simplify right side
    72,972.12x = 4,142,595,733.52
  5. Step 5: Solve for x
    x = 4,142,595,733.52/72,972.12
  6. Step 6: Final answer
    x = 56,769.57

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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.