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Finding the Fourth Proportional to 66,907.74, 100,366.23 and 19,522.08

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Solution

The fourth proportional to 66,907.74, 100,366.23 and 19,522.08 is: 29,284.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,907.74 : 100,366.23 = 19,522.08 : x
  2. Step 2: Convert to fraction form
    66,907.74/100,366.23 = 19,522.08/x
  3. Step 3: Cross multiply
    66,907.74x = 100,366.23 × 19,522.08
  4. Step 4: Simplify right side
    66,907.74x = 1,959,357,571.36
  5. Step 5: Solve for x
    x = 1,959,357,571.36/66,907.74
  6. Step 6: Final answer
    x = 29,284.47

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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.