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Finding the Fourth Proportional to 79,308, 118,962 and 30,060

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Solution

The fourth proportional to 79,308, 118,962 and 30,060 is: 45,090

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,308 : 118,962 = 30,060 : x
  2. Step 2: Convert to fraction form
    79,308/118,962 = 30,060/x
  3. Step 3: Cross multiply
    79,308x = 118,962 × 30,060
  4. Step 4: Simplify right side
    79,308x = 3,575,997,720
  5. Step 5: Solve for x
    x = 3,575,997,720/79,308
  6. Step 6: Final answer
    x = 45,090

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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.