Home / 47,916.12-66,089.04-30,911.73

Finding the Fourth Proportional to 47,916.12, 66,089.04 and 30,911.73

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Solution

The fourth proportional to 47,916.12, 66,089.04 and 30,911.73 is: 42,635.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,916.12 : 66,089.04 = 30,911.73 : x
  2. Step 2: Convert to fraction form
    47,916.12/66,089.04 = 30,911.73/x
  3. Step 3: Cross multiply
    47,916.12x = 66,089.04 × 30,911.73
  4. Step 4: Simplify right side
    47,916.12x = 2,042,926,560.44
  5. Step 5: Solve for x
    x = 2,042,926,560.44/47,916.12
  6. Step 6: Final answer
    x = 42,635.48

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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.