Home / 76,699.11-115,076.35-26,786.57

Finding the Fourth Proportional to 76,699.11, 115,076.35 and 26,786.57

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Solution

The fourth proportional to 76,699.11, 115,076.35 and 26,786.57 is: 40,189.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,699.11 : 115,076.35 = 26,786.57 : x
  2. Step 2: Convert to fraction form
    76,699.11/115,076.35 = 26,786.57/x
  3. Step 3: Cross multiply
    76,699.11x = 115,076.35 × 26,786.57
  4. Step 4: Simplify right side
    76,699.11x = 3,082,500,637.65
  5. Step 5: Solve for x
    x = 3,082,500,637.65/76,699.11
  6. Step 6: Final answer
    x = 40,189.52

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1.5x scale

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.