Home / 86,134.16-118,865.25-47,893.30

Finding the Fourth Proportional to 86,134.16, 118,865.25 and 47,893.30

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Solution

The fourth proportional to 86,134.16, 118,865.25 and 47,893.30 is: 66,092.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,134.16 : 118,865.25 = 47,893.30 : x
  2. Step 2: Convert to fraction form
    86,134.16/118,865.25 = 47,893.30/x
  3. Step 3: Cross multiply
    86,134.16x = 118,865.25 × 47,893.30
  4. Step 4: Simplify right side
    86,134.16x = 5,692,848,780.66
  5. Step 5: Solve for x
    x = 5,692,848,780.66/86,134.16
  6. Step 6: Final answer
    x = 66,092.81

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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.