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Finding the Fourth Proportional to 69,071.65, 103,638.90 and 33,513.77

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Solution

The fourth proportional to 69,071.65, 103,638.90 and 33,513.77 is: 50,285.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,071.65 : 103,638.90 = 33,513.77 : x
  2. Step 2: Convert to fraction form
    69,071.65/103,638.90 = 33,513.77/x
  3. Step 3: Cross multiply
    69,071.65x = 103,638.90 × 33,513.77
  4. Step 4: Simplify right side
    69,071.65x = 3,473,330,257.65
  5. Step 5: Solve for x
    x = 3,473,330,257.65/69,071.65
  6. Step 6: Final answer
    x = 50,285.90

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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.