Home / 69,901.09-104,834.04-19,981.45

Finding the Fourth Proportional to 69,901.09, 104,834.04 and 19,981.45

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Solution

The fourth proportional to 69,901.09, 104,834.04 and 19,981.45 is: 29,967.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,901.09 : 104,834.04 = 19,981.45 : x
  2. Step 2: Convert to fraction form
    69,901.09/104,834.04 = 19,981.45/x
  3. Step 3: Cross multiply
    69,901.09x = 104,834.04 × 19,981.45
  4. Step 4: Simplify right side
    69,901.09x = 2,094,736,128.56
  5. Step 5: Solve for x
    x = 2,094,736,128.56/69,901.09
  6. Step 6: Final answer
    x = 29,967.15

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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.