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Finding the Fourth Proportional to 77,336, 116,004 and 18,968

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Solution

The fourth proportional to 77,336, 116,004 and 18,968 is: 28,452

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,336 : 116,004 = 18,968 : x
  2. Step 2: Convert to fraction form
    77,336/116,004 = 18,968/x
  3. Step 3: Cross multiply
    77,336x = 116,004 × 18,968
  4. Step 4: Simplify right side
    77,336x = 2,200,363,872
  5. Step 5: Solve for x
    x = 2,200,363,872/77,336
  6. Step 6: Final answer
    x = 28,452

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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.