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Finding the Fourth Proportional to 67,349.91, 101,021.21 and 20,602.79

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Solution

The fourth proportional to 67,349.91, 101,021.21 and 20,602.79 is: 30,903.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,349.91 : 101,021.21 = 20,602.79 : x
  2. Step 2: Convert to fraction form
    67,349.91/101,021.21 = 20,602.79/x
  3. Step 3: Cross multiply
    67,349.91x = 101,021.21 × 20,602.79
  4. Step 4: Simplify right side
    67,349.91x = 2,081,318,623.15
  5. Step 5: Solve for x
    x = 2,081,318,623.15/67,349.91
  6. Step 6: Final answer
    x = 30,903.06

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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.