Home / 69,981.45-104,940.59-20,050.12

Finding the Fourth Proportional to 69,981.45, 104,940.59 and 20,050.12

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Solution

The fourth proportional to 69,981.45, 104,940.59 and 20,050.12 is: 30,066.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,981.45 : 104,940.59 = 20,050.12 : x
  2. Step 2: Convert to fraction form
    69,981.45/104,940.59 = 20,050.12/x
  3. Step 3: Cross multiply
    69,981.45x = 104,940.59 × 20,050.12
  4. Step 4: Simplify right side
    69,981.45x = 2,104,071,059.77
  5. Step 5: Solve for x
    x = 2,104,071,059.77/69,981.45
  6. Step 6: Final answer
    x = 30,066.13

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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.