Home / 78,083.03-107,752.60-43,628.04

Finding the Fourth Proportional to 78,083.03, 107,752.60 and 43,628.04

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Solution

The fourth proportional to 78,083.03, 107,752.60 and 43,628.04 is: 60,205.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,083.03 : 107,752.60 = 43,628.04 : x
  2. Step 2: Convert to fraction form
    78,083.03/107,752.60 = 43,628.04/x
  3. Step 3: Cross multiply
    78,083.03x = 107,752.60 × 43,628.04
  4. Step 4: Simplify right side
    78,083.03x = 4,701,034,742.90
  5. Step 5: Solve for x
    x = 4,701,034,742.90/78,083.03
  6. Step 6: Final answer
    x = 60,205.59

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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.