Home / 87,858.21-131,808.15-28,693.77

Finding the Fourth Proportional to 87,858.21, 131,808.15 and 28,693.77

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Solution

The fourth proportional to 87,858.21, 131,808.15 and 28,693.77 is: 43,047.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,858.21 : 131,808.15 = 28,693.77 : x
  2. Step 2: Convert to fraction form
    87,858.21/131,808.15 = 28,693.77/x
  3. Step 3: Cross multiply
    87,858.21x = 131,808.15 × 28,693.77
  4. Step 4: Simplify right side
    87,858.21x = 3,782,072,740.23
  5. Step 5: Solve for x
    x = 3,782,072,740.23/87,858.21
  6. Step 6: Final answer
    x = 43,047.46

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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.