Home / 76,878.52-115,317.09-24,288.00

Finding the Fourth Proportional to 76,878.52, 115,317.09 and 24,288.00

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Solution

The fourth proportional to 76,878.52, 115,317.09 and 24,288.00 is: 36,431.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,878.52 : 115,317.09 = 24,288.00 : x
  2. Step 2: Convert to fraction form
    76,878.52/115,317.09 = 24,288.00/x
  3. Step 3: Cross multiply
    76,878.52x = 115,317.09 × 24,288.00
  4. Step 4: Simplify right side
    76,878.52x = 2,800,821,766.45
  5. Step 5: Solve for x
    x = 2,800,821,766.45/76,878.52
  6. Step 6: Final answer
    x = 36,431.79

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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.