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Finding the Fourth Proportional to 67,389.55, 101,066.10 and 20,004.55

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Solution

The fourth proportional to 67,389.55, 101,066.10 and 20,004.55 is: 30,001.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,389.55 : 101,066.10 = 20,004.55 : x
  2. Step 2: Convert to fraction form
    67,389.55/101,066.10 = 20,004.55/x
  3. Step 3: Cross multiply
    67,389.55x = 101,066.10 × 20,004.55
  4. Step 4: Simplify right side
    67,389.55x = 2,021,781,850.76
  5. Step 5: Solve for x
    x = 2,021,781,850.76/67,389.55
  6. Step 6: Final answer
    x = 30,001.41

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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.