Home / 69,890.14-104,817.52-19,970.50

Finding the Fourth Proportional to 69,890.14, 104,817.52 and 19,970.50

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Solution

The fourth proportional to 69,890.14, 104,817.52 and 19,970.50 is: 29,950.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,890.14 : 104,817.52 = 19,970.50 : x
  2. Step 2: Convert to fraction form
    69,890.14/104,817.52 = 19,970.50/x
  3. Step 3: Cross multiply
    69,890.14x = 104,817.52 × 19,970.50
  4. Step 4: Simplify right side
    69,890.14x = 2,093,258,186.45
  5. Step 5: Solve for x
    x = 2,093,258,186.45/69,890.14
  6. Step 6: Final answer
    x = 29,950.69

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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.