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Finding the Fourth Proportional to 66,907.89, 100,326.56 and 35,334.90

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Solution

The fourth proportional to 66,907.89, 100,326.56 and 35,334.90 is: 52,983.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,907.89 : 100,326.56 = 35,334.90 : x
  2. Step 2: Convert to fraction form
    66,907.89/100,326.56 = 35,334.90/x
  3. Step 3: Cross multiply
    66,907.89x = 100,326.56 × 35,334.90
  4. Step 4: Simplify right side
    66,907.89x = 3,545,028,788.27
  5. Step 5: Solve for x
    x = 3,545,028,788.27/66,907.89
  6. Step 6: Final answer
    x = 52,983.72

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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.