Home / 78,743.41-108,667.96-48,548.68

Finding the Fourth Proportional to 78,743.41, 108,667.96 and 48,548.68

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Solution

The fourth proportional to 78,743.41, 108,667.96 and 48,548.68 is: 66,998.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,743.41 : 108,667.96 = 48,548.68 : x
  2. Step 2: Convert to fraction form
    78,743.41/108,667.96 = 48,548.68/x
  3. Step 3: Cross multiply
    78,743.41x = 108,667.96 × 48,548.68
  4. Step 4: Simplify right side
    78,743.41x = 5,275,685,623.25
  5. Step 5: Solve for x
    x = 5,275,685,623.25/78,743.41
  6. Step 6: Final answer
    x = 66,998.44

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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.