Home / 87,779.56-131,410.86-54,392.32

Finding the Fourth Proportional to 87,779.56, 131,410.86 and 54,392.32

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Solution

The fourth proportional to 87,779.56, 131,410.86 and 54,392.32 is: 81,428.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,779.56 : 131,410.86 = 54,392.32 : x
  2. Step 2: Convert to fraction form
    87,779.56/131,410.86 = 54,392.32/x
  3. Step 3: Cross multiply
    87,779.56x = 131,410.86 × 54,392.32
  4. Step 4: Simplify right side
    87,779.56x = 7,147,741,548.60
  5. Step 5: Solve for x
    x = 7,147,741,548.60/87,779.56
  6. Step 6: Final answer
    x = 81,428.31

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.