Home / 69,981.52-104,962.42-20,065.88

Finding the Fourth Proportional to 69,981.52, 104,962.42 and 20,065.88

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Solution

The fourth proportional to 69,981.52, 104,962.42 and 20,065.88 is: 30,095.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,981.52 : 104,962.42 = 20,065.88 : x
  2. Step 2: Convert to fraction form
    69,981.52/104,962.42 = 20,065.88/x
  3. Step 3: Cross multiply
    69,981.52x = 104,962.42 × 20,065.88
  4. Step 4: Simplify right side
    69,981.52x = 2,106,163,324.23
  5. Step 5: Solve for x
    x = 2,106,163,324.23/69,981.52
  6. Step 6: Final answer
    x = 30,095.99

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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.