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Finding the Fourth Proportional to 73,389.27, 110,049.20 and 28,431.68

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Solution

The fourth proportional to 73,389.27, 110,049.20 and 28,431.68 is: 42,634.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,389.27 : 110,049.20 = 28,431.68 : x
  2. Step 2: Convert to fraction form
    73,389.27/110,049.20 = 28,431.68/x
  3. Step 3: Cross multiply
    73,389.27x = 110,049.20 × 28,431.68
  4. Step 4: Simplify right side
    73,389.27x = 3,128,883,638.66
  5. Step 5: Solve for x
    x = 3,128,883,638.66/73,389.27
  6. Step 6: Final answer
    x = 42,634.07

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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.