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Finding the Fourth Proportional to 45,265.92, 67,890.30 and 20,301.30

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Solution

The fourth proportional to 45,265.92, 67,890.30 and 20,301.30 is: 30,448.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,265.92 : 67,890.30 = 20,301.30 : x
  2. Step 2: Convert to fraction form
    45,265.92/67,890.30 = 20,301.30/x
  3. Step 3: Cross multiply
    45,265.92x = 67,890.30 × 20,301.30
  4. Step 4: Simplify right side
    45,265.92x = 1,378,261,347.39
  5. Step 5: Solve for x
    x = 1,378,261,347.39/45,265.92
  6. Step 6: Final answer
    x = 30,448.10

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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.