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Finding the Fourth Proportional to 66,881.93, 100,323.07 and 16,962.05

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Solution

The fourth proportional to 66,881.93, 100,323.07 and 16,962.05 is: 25,443.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,881.93 : 100,323.07 = 16,962.05 : x
  2. Step 2: Convert to fraction form
    66,881.93/100,323.07 = 16,962.05/x
  3. Step 3: Cross multiply
    66,881.93x = 100,323.07 × 16,962.05
  4. Step 4: Simplify right side
    66,881.93x = 1,701,685,137.90
  5. Step 5: Solve for x
    x = 1,701,685,137.90/66,881.93
  6. Step 6: Final answer
    x = 25,443.12

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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.