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Finding the Fourth Proportional to 69,707.57, 104,502.57 and 30,234.95

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Solution

The fourth proportional to 69,707.57, 104,502.57 and 30,234.95 is: 45,326.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,707.57 : 104,502.57 = 30,234.95 : x
  2. Step 2: Convert to fraction form
    69,707.57/104,502.57 = 30,234.95/x
  3. Step 3: Cross multiply
    69,707.57x = 104,502.57 × 30,234.95
  4. Step 4: Simplify right side
    69,707.57x = 3,159,629,978.82
  5. Step 5: Solve for x
    x = 3,159,629,978.82/69,707.57
  6. Step 6: Final answer
    x = 45,326.93

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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.