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Finding the Fourth Proportional to 84,383.58, 116,394.47 and 54,120.97

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Solution

The fourth proportional to 84,383.58, 116,394.47 and 54,120.97 is: 74,651.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,383.58 : 116,394.47 = 54,120.97 : x
  2. Step 2: Convert to fraction form
    84,383.58/116,394.47 = 54,120.97/x
  3. Step 3: Cross multiply
    84,383.58x = 116,394.47 × 54,120.97
  4. Step 4: Simplify right side
    84,383.58x = 6,299,381,172.37
  5. Step 5: Solve for x
    x = 6,299,381,172.37/84,383.58
  6. Step 6: Final answer
    x = 74,651.74

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1.5x scale

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.