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Finding the Fourth Proportional to 72,680.34, 109,020.51 and 22,764.35

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Solution

The fourth proportional to 72,680.34, 109,020.51 and 22,764.35 is: 34,146.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,680.34 : 109,020.51 = 22,764.35 : x
  2. Step 2: Convert to fraction form
    72,680.34/109,020.51 = 22,764.35/x
  3. Step 3: Cross multiply
    72,680.34x = 109,020.51 × 22,764.35
  4. Step 4: Simplify right side
    72,680.34x = 2,481,780,501.72
  5. Step 5: Solve for x
    x = 2,481,780,501.72/72,680.34
  6. Step 6: Final answer
    x = 34,146.52

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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.