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Finding the Fourth Proportional to 72,936.50, 109,404.78 and 23,021.65

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Solution

The fourth proportional to 72,936.50, 109,404.78 and 23,021.65 is: 34,532.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,936.50 : 109,404.78 = 23,021.65 : x
  2. Step 2: Convert to fraction form
    72,936.50/109,404.78 = 23,021.65/x
  3. Step 3: Cross multiply
    72,936.50x = 109,404.78 × 23,021.65
  4. Step 4: Simplify right side
    72,936.50x = 2,518,678,279.98
  5. Step 5: Solve for x
    x = 2,518,678,279.98/72,936.50
  6. Step 6: Final answer
    x = 34,532.48

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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.