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Finding the Fourth Proportional to 69,573.92, 104,315.52 and 45,809.57

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Solution

The fourth proportional to 69,573.92, 104,315.52 and 45,809.57 is: 68,684.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,573.92 : 104,315.52 = 45,809.57 : x
  2. Step 2: Convert to fraction form
    69,573.92/104,315.52 = 45,809.57/x
  3. Step 3: Cross multiply
    69,573.92x = 104,315.52 × 45,809.57
  4. Step 4: Simplify right side
    69,573.92x = 4,778,649,115.53
  5. Step 5: Solve for x
    x = 4,778,649,115.53/69,573.92
  6. Step 6: Final answer
    x = 68,684.49

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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.