Home / 87,556.72-120,878.04-57,835.12

Finding the Fourth Proportional to 87,556.72, 120,878.04 and 57,835.12

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Solution

The fourth proportional to 87,556.72, 120,878.04 and 57,835.12 is: 79,845.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,556.72 : 120,878.04 = 57,835.12 : x
  2. Step 2: Convert to fraction form
    87,556.72/120,878.04 = 57,835.12/x
  3. Step 3: Cross multiply
    87,556.72x = 120,878.04 × 57,835.12
  4. Step 4: Simplify right side
    87,556.72x = 6,990,995,948.76
  5. Step 5: Solve for x
    x = 6,990,995,948.76/87,556.72
  6. Step 6: Final answer
    x = 79,845.34

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.