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Finding the Fourth Proportional to 73,049.76, 109,589.40 and 30,929.76

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Solution

The fourth proportional to 73,049.76, 109,589.40 and 30,929.76 is: 46,400.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,049.76 : 109,589.40 = 30,929.76 : x
  2. Step 2: Convert to fraction form
    73,049.76/109,589.40 = 30,929.76/x
  3. Step 3: Cross multiply
    73,049.76x = 109,589.40 × 30,929.76
  4. Step 4: Simplify right side
    73,049.76x = 3,389,573,840.54
  5. Step 5: Solve for x
    x = 3,389,573,840.54/73,049.76
  6. Step 6: Final answer
    x = 46,400.89

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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.