Home / 86,702.36-119,645.57-54,453.83

Finding the Fourth Proportional to 86,702.36, 119,645.57 and 54,453.83

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Solution

The fourth proportional to 86,702.36, 119,645.57 and 54,453.83 is: 75,143.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,702.36 : 119,645.57 = 54,453.83 : x
  2. Step 2: Convert to fraction form
    86,702.36/119,645.57 = 54,453.83/x
  3. Step 3: Cross multiply
    86,702.36x = 119,645.57 × 54,453.83
  4. Step 4: Simplify right side
    86,702.36x = 6,515,159,066.94
  5. Step 5: Solve for x
    x = 6,515,159,066.94/86,702.36
  6. Step 6: Final answer
    x = 75,143.97

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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.