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Finding the Fourth Proportional to 69,992.79, 104,989.19 and 25,600.34

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Solution

The fourth proportional to 69,992.79, 104,989.19 and 25,600.34 is: 38,400.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,992.79 : 104,989.19 = 25,600.34 : x
  2. Step 2: Convert to fraction form
    69,992.79/104,989.19 = 25,600.34/x
  3. Step 3: Cross multiply
    69,992.79x = 104,989.19 × 25,600.34
  4. Step 4: Simplify right side
    69,992.79x = 2,687,758,307.38
  5. Step 5: Solve for x
    x = 2,687,758,307.38/69,992.79
  6. Step 6: Final answer
    x = 38,400.50

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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.