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Finding the Fourth Proportional to 73,000.69, 109,529.66 and 28,619.85

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Solution

The fourth proportional to 73,000.69, 109,529.66 and 28,619.85 is: 42,941.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,000.69 : 109,529.66 = 28,619.85 : x
  2. Step 2: Convert to fraction form
    73,000.69/109,529.66 = 28,619.85/x
  3. Step 3: Cross multiply
    73,000.69x = 109,529.66 × 28,619.85
  4. Step 4: Simplify right side
    73,000.69x = 3,134,722,439.75
  5. Step 5: Solve for x
    x = 3,134,722,439.75/73,000.69
  6. Step 6: Final answer
    x = 42,941.00

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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.