Home / 47,825.10-71,732.16-12,762

Finding the Fourth Proportional to 47,825.10, 71,732.16 and 12,762

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Solution

The fourth proportional to 47,825.10, 71,732.16 and 12,762 is: 19,141.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,825.10 : 71,732.16 = 12,762 : x
  2. Step 2: Convert to fraction form
    47,825.10/71,732.16 = 12,762/x
  3. Step 3: Cross multiply
    47,825.10x = 71,732.16 × 12,762
  4. Step 4: Simplify right side
    47,825.10x = 915,445,825.92
  5. Step 5: Solve for x
    x = 915,445,825.92/47,825.10
  6. Step 6: Final answer
    x = 19,141.54

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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.