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Finding the Fourth Proportional to 79,733.60, 119,697.60 and 40,270.40

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Solution

The fourth proportional to 79,733.60, 119,697.60 and 40,270.40 is: 60,454.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,733.60 : 119,697.60 = 40,270.40 : x
  2. Step 2: Convert to fraction form
    79,733.60/119,697.60 = 40,270.40/x
  3. Step 3: Cross multiply
    79,733.60x = 119,697.60 × 40,270.40
  4. Step 4: Simplify right side
    79,733.60x = 4,820,270,231.04
  5. Step 5: Solve for x
    x = 4,820,270,231.04/79,733.60
  6. Step 6: Final answer
    x = 60,454.69

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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.