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Finding the Fourth Proportional to 97,640.40, 146,266.20 and 50,919.60

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Solution

The fourth proportional to 97,640.40, 146,266.20 and 50,919.60 is: 76,278.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,640.40 : 146,266.20 = 50,919.60 : x
  2. Step 2: Convert to fraction form
    97,640.40/146,266.20 = 50,919.60/x
  3. Step 3: Cross multiply
    97,640.40x = 146,266.20 × 50,919.60
  4. Step 4: Simplify right side
    97,640.40x = 7,447,816,397.52
  5. Step 5: Solve for x
    x = 7,447,816,397.52/97,640.40
  6. Step 6: Final answer
    x = 76,278.02

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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.