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Finding the Fourth Proportional to 72,812.52, 109,237.01 and 22,890.60

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Solution

The fourth proportional to 72,812.52, 109,237.01 and 22,890.60 is: 34,341.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,812.52 : 109,237.01 = 22,890.60 : x
  2. Step 2: Convert to fraction form
    72,812.52/109,237.01 = 22,890.60/x
  3. Step 3: Cross multiply
    72,812.52x = 109,237.01 × 22,890.60
  4. Step 4: Simplify right side
    72,812.52x = 2,500,500,586.65
  5. Step 5: Solve for x
    x = 2,500,500,586.65/72,812.52
  6. Step 6: Final answer
    x = 34,341.63

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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.