Home / 49,048.15-67,688.68-28,905.88

Finding the Fourth Proportional to 49,048.15, 67,688.68 and 28,905.88

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Solution

The fourth proportional to 49,048.15, 67,688.68 and 28,905.88 is: 39,891.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,048.15 : 67,688.68 = 28,905.88 : x
  2. Step 2: Convert to fraction form
    49,048.15/67,688.68 = 28,905.88/x
  3. Step 3: Cross multiply
    49,048.15x = 67,688.68 × 28,905.88
  4. Step 4: Simplify right side
    49,048.15x = 1,956,600,861.44
  5. Step 5: Solve for x
    x = 1,956,600,861.44/49,048.15
  6. Step 6: Final answer
    x = 39,891.43

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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.