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Finding the Fourth Proportional to 69,514.98, 104,194.71 and 30,012.90

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Solution

The fourth proportional to 69,514.98, 104,194.71 and 30,012.90 is: 44,985.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,514.98 : 104,194.71 = 30,012.90 : x
  2. Step 2: Convert to fraction form
    69,514.98/104,194.71 = 30,012.90/x
  3. Step 3: Cross multiply
    69,514.98x = 104,194.71 × 30,012.90
  4. Step 4: Simplify right side
    69,514.98x = 3,127,185,411.76
  5. Step 5: Solve for x
    x = 3,127,185,411.76/69,514.98
  6. Step 6: Final answer
    x = 44,985.78

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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.