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Finding the Fourth Proportional to 67,398.20, 101,097.30 and 66,523.40

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Solution

The fourth proportional to 67,398.20, 101,097.30 and 66,523.40 is: 99,785.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,398.20 : 101,097.30 = 66,523.40 : x
  2. Step 2: Convert to fraction form
    67,398.20/101,097.30 = 66,523.40/x
  3. Step 3: Cross multiply
    67,398.20x = 101,097.30 × 66,523.40
  4. Step 4: Simplify right side
    67,398.20x = 6,725,336,126.82
  5. Step 5: Solve for x
    x = 6,725,336,126.82/67,398.20
  6. Step 6: Final answer
    x = 99,785.10

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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.