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Finding the Fourth Proportional to 69,707.99, 104,503.21 and 30,235.39

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Solution

The fourth proportional to 69,707.99, 104,503.21 and 30,235.39 is: 45,327.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,707.99 : 104,503.21 = 30,235.39 : x
  2. Step 2: Convert to fraction form
    69,707.99/104,503.21 = 30,235.39/x
  3. Step 3: Cross multiply
    69,707.99x = 104,503.21 × 30,235.39
  4. Step 4: Simplify right side
    69,707.99x = 3,159,694,973.76
  5. Step 5: Solve for x
    x = 3,159,694,973.76/69,707.99
  6. Step 6: Final answer
    x = 45,327.59

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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.