Home / 69,780.77-104,663.36-19,183.67

Finding the Fourth Proportional to 69,780.77, 104,663.36 and 19,183.67

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Solution

The fourth proportional to 69,780.77, 104,663.36 and 19,183.67 is: 28,773.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,780.77 : 104,663.36 = 19,183.67 : x
  2. Step 2: Convert to fraction form
    69,780.77/104,663.36 = 19,183.67/x
  3. Step 3: Cross multiply
    69,780.77x = 104,663.36 × 19,183.67
  4. Step 4: Simplify right side
    69,780.77x = 2,007,826,740.10
  5. Step 5: Solve for x
    x = 2,007,826,740.10/69,780.77
  6. Step 6: Final answer
    x = 28,773.36

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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.