Home / 77,427.60-106,845.33-43,429.77

Finding the Fourth Proportional to 77,427.60, 106,845.33 and 43,429.77

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Solution

The fourth proportional to 77,427.60, 106,845.33 and 43,429.77 is: 59,930.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,427.60 : 106,845.33 = 43,429.77 : x
  2. Step 2: Convert to fraction form
    77,427.60/106,845.33 = 43,429.77/x
  3. Step 3: Cross multiply
    77,427.60x = 106,845.33 × 43,429.77
  4. Step 4: Simplify right side
    77,427.60x = 4,640,268,026.04
  5. Step 5: Solve for x
    x = 4,640,268,026.04/77,427.60
  6. Step 6: Final answer
    x = 59,930.42

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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.