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Finding the Fourth Proportional to 80,325.84, 110,751.12 and 65,175.60

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Solution

The fourth proportional to 80,325.84, 110,751.12 and 65,175.60 is: 89,862.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,325.84 : 110,751.12 = 65,175.60 : x
  2. Step 2: Convert to fraction form
    80,325.84/110,751.12 = 65,175.60/x
  3. Step 3: Cross multiply
    80,325.84x = 110,751.12 × 65,175.60
  4. Step 4: Simplify right side
    80,325.84x = 7,218,270,696.67
  5. Step 5: Solve for x
    x = 7,218,270,696.67/80,325.84
  6. Step 6: Final answer
    x = 89,862.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.