Home / 87,880.08-131,837.08-28,699.84

Finding the Fourth Proportional to 87,880.08, 131,837.08 and 28,699.84

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Solution

The fourth proportional to 87,880.08, 131,837.08 and 28,699.84 is: 43,055.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,880.08 : 131,837.08 = 28,699.84 : x
  2. Step 2: Convert to fraction form
    87,880.08/131,837.08 = 28,699.84/x
  3. Step 3: Cross multiply
    87,880.08x = 131,837.08 × 28,699.84
  4. Step 4: Simplify right side
    87,880.08x = 3,783,703,102.07
  5. Step 5: Solve for x
    x = 3,783,703,102.07/87,880.08
  6. Step 6: Final answer
    x = 43,055.30

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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.