Home / 78,984.92-108,999.18-43,175.07

Finding the Fourth Proportional to 78,984.92, 108,999.18 and 43,175.07

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Solution

The fourth proportional to 78,984.92, 108,999.18 and 43,175.07 is: 59,581.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,984.92 : 108,999.18 = 43,175.07 : x
  2. Step 2: Convert to fraction form
    78,984.92/108,999.18 = 43,175.07/x
  3. Step 3: Cross multiply
    78,984.92x = 108,999.18 × 43,175.07
  4. Step 4: Simplify right side
    78,984.92x = 4,706,047,226.44
  5. Step 5: Solve for x
    x = 4,706,047,226.44/78,984.92
  6. Step 6: Final answer
    x = 59,581.59

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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.