Home / 77,136.76-106,445.82-43,603.48

Finding the Fourth Proportional to 77,136.76, 106,445.82 and 43,603.48

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Solution

The fourth proportional to 77,136.76, 106,445.82 and 43,603.48 is: 60,171.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,136.76 : 106,445.82 = 43,603.48 : x
  2. Step 2: Convert to fraction form
    77,136.76/106,445.82 = 43,603.48/x
  3. Step 3: Cross multiply
    77,136.76x = 106,445.82 × 43,603.48
  4. Step 4: Simplify right side
    77,136.76x = 4,641,408,183.45
  5. Step 5: Solve for x
    x = 4,641,408,183.45/77,136.76
  6. Step 6: Final answer
    x = 60,171.16

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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.