Home / 87,779.36-131,682-25,441.76

Finding the Fourth Proportional to 87,779.36, 131,682 and 25,441.76

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Solution

The fourth proportional to 87,779.36, 131,682 and 25,441.76 is: 38,166.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,779.36 : 131,682 = 25,441.76 : x
  2. Step 2: Convert to fraction form
    87,779.36/131,682 = 25,441.76/x
  3. Step 3: Cross multiply
    87,779.36x = 131,682 × 25,441.76
  4. Step 4: Simplify right side
    87,779.36x = 3,350,221,840.32
  5. Step 5: Solve for x
    x = 3,350,221,840.32/87,779.36
  6. Step 6: Final answer
    x = 38,166.40

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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.