Home / 47,702.56-65,842.38-29,786.80

Finding the Fourth Proportional to 47,702.56, 65,842.38 and 29,786.80

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Solution

The fourth proportional to 47,702.56, 65,842.38 and 29,786.80 is: 41,113.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,702.56 : 65,842.38 = 29,786.80 : x
  2. Step 2: Convert to fraction form
    47,702.56/65,842.38 = 29,786.80/x
  3. Step 3: Cross multiply
    47,702.56x = 65,842.38 × 29,786.80
  4. Step 4: Simplify right side
    47,702.56x = 1,961,233,804.58
  5. Step 5: Solve for x
    x = 1,961,233,804.58/47,702.56
  6. Step 6: Final answer
    x = 41,113.81

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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.