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Finding the Fourth Proportional to 69,967.55, 104,950.80 and 20,047.69

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Solution

The fourth proportional to 69,967.55, 104,950.80 and 20,047.69 is: 30,071.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,967.55 : 104,950.80 = 20,047.69 : x
  2. Step 2: Convert to fraction form
    69,967.55/104,950.80 = 20,047.69/x
  3. Step 3: Cross multiply
    69,967.55x = 104,950.80 × 20,047.69
  4. Step 4: Simplify right side
    69,967.55x = 2,104,021,103.65
  5. Step 5: Solve for x
    x = 2,104,021,103.65/69,967.55
  6. Step 6: Final answer
    x = 30,071.38

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1.5x scale

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.