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Finding the Fourth Proportional to 67,953.10, 101,966.10 and 28,514.20

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Solution

The fourth proportional to 67,953.10, 101,966.10 and 28,514.20 is: 42,786.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,953.10 : 101,966.10 = 28,514.20 : x
  2. Step 2: Convert to fraction form
    67,953.10/101,966.10 = 28,514.20/x
  3. Step 3: Cross multiply
    67,953.10x = 101,966.10 × 28,514.20
  4. Step 4: Simplify right side
    67,953.10x = 2,907,481,768.62
  5. Step 5: Solve for x
    x = 2,907,481,768.62/67,953.10
  6. Step 6: Final answer
    x = 42,786.59

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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.