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Finding the Fourth Proportional to 65,786.31, 90,779.63 and 37,104.39

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Solution

The fourth proportional to 65,786.31, 90,779.63 and 37,104.39 is: 51,200.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,786.31 : 90,779.63 = 37,104.39 : x
  2. Step 2: Convert to fraction form
    65,786.31/90,779.63 = 37,104.39/x
  3. Step 3: Cross multiply
    65,786.31x = 90,779.63 × 37,104.39
  4. Step 4: Simplify right side
    65,786.31x = 3,368,322,610.05
  5. Step 5: Solve for x
    x = 3,368,322,610.05/65,786.31
  6. Step 6: Final answer
    x = 51,200.97

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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.