Home / 47,976.49-71,968.38-12,916.45

Finding the Fourth Proportional to 47,976.49, 71,968.38 and 12,916.45

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Solution

The fourth proportional to 47,976.49, 71,968.38 and 12,916.45 is: 19,375.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,976.49 : 71,968.38 = 12,916.45 : x
  2. Step 2: Convert to fraction form
    47,976.49/71,968.38 = 12,916.45/x
  3. Step 3: Cross multiply
    47,976.49x = 71,968.38 × 12,916.45
  4. Step 4: Simplify right side
    47,976.49x = 929,575,981.85
  5. Step 5: Solve for x
    x = 929,575,981.85/47,976.49
  6. Step 6: Final answer
    x = 19,375.66

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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.