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Finding the Fourth Proportional to 67,398.63, 101,094.30 and 20,651.64

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Solution

The fourth proportional to 67,398.63, 101,094.30 and 20,651.64 is: 30,976.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,398.63 : 101,094.30 = 20,651.64 : x
  2. Step 2: Convert to fraction form
    67,398.63/101,094.30 = 20,651.64/x
  3. Step 3: Cross multiply
    67,398.63x = 101,094.30 × 20,651.64
  4. Step 4: Simplify right side
    67,398.63x = 2,087,763,089.65
  5. Step 5: Solve for x
    x = 2,087,763,089.65/67,398.63
  6. Step 6: Final answer
    x = 30,976.34

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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.