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Finding the Fourth Proportional to 80,506.44, 111,031.80 and 60,407.88

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Solution

The fourth proportional to 80,506.44, 111,031.80 and 60,407.88 is: 83,312.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,506.44 : 111,031.80 = 60,407.88 : x
  2. Step 2: Convert to fraction form
    80,506.44/111,031.80 = 60,407.88/x
  3. Step 3: Cross multiply
    80,506.44x = 111,031.80 × 60,407.88
  4. Step 4: Simplify right side
    80,506.44x = 6,707,195,650.58
  5. Step 5: Solve for x
    x = 6,707,195,650.58/80,506.44
  6. Step 6: Final answer
    x = 83,312.54

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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.