Home / 47,916.54-66,089.63-30,912.15

Finding the Fourth Proportional to 47,916.54, 66,089.63 and 30,912.15

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Solution

The fourth proportional to 47,916.54, 66,089.63 and 30,912.15 is: 42,636.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,916.54 : 66,089.63 = 30,912.15 : x
  2. Step 2: Convert to fraction form
    47,916.54/66,089.63 = 30,912.15/x
  3. Step 3: Cross multiply
    47,916.54x = 66,089.63 × 30,912.15
  4. Step 4: Simplify right side
    47,916.54x = 2,042,972,401.44
  5. Step 5: Solve for x
    x = 2,042,972,401.44/47,916.54
  6. Step 6: Final answer
    x = 42,636.06

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.