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Finding the Fourth Proportional to 69,581.66, 104,367.02 and 19,659.74

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Solution

The fourth proportional to 69,581.66, 104,367.02 and 19,659.74 is: 29,488.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,581.66 : 104,367.02 = 19,659.74 : x
  2. Step 2: Convert to fraction form
    69,581.66/104,367.02 = 19,659.74/x
  3. Step 3: Cross multiply
    69,581.66x = 104,367.02 × 19,659.74
  4. Step 4: Simplify right side
    69,581.66x = 2,051,827,857.64
  5. Step 5: Solve for x
    x = 2,051,827,857.64/69,581.66
  6. Step 6: Final answer
    x = 29,488.06

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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.