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Finding the Fourth Proportional to 69,950.52, 104,908.14 and 20,030.94

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Solution

The fourth proportional to 69,950.52, 104,908.14 and 20,030.94 is: 30,041.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,950.52 : 104,908.14 = 20,030.94 : x
  2. Step 2: Convert to fraction form
    69,950.52/104,908.14 = 20,030.94/x
  3. Step 3: Cross multiply
    69,950.52x = 104,908.14 × 20,030.94
  4. Step 4: Simplify right side
    69,950.52x = 2,101,408,657.85
  5. Step 5: Solve for x
    x = 2,101,408,657.85/69,950.52
  6. Step 6: Final answer
    x = 30,041.36

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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.