Home / 76,435.79-114,674.01-26,515.80

Finding the Fourth Proportional to 76,435.79, 114,674.01 and 26,515.80

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Solution

The fourth proportional to 76,435.79, 114,674.01 and 26,515.80 is: 39,780.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,435.79 : 114,674.01 = 26,515.80 : x
  2. Step 2: Convert to fraction form
    76,435.79/114,674.01 = 26,515.80/x
  3. Step 3: Cross multiply
    76,435.79x = 114,674.01 × 26,515.80
  4. Step 4: Simplify right side
    76,435.79x = 3,040,673,323.99
  5. Step 5: Solve for x
    x = 3,040,673,323.99/76,435.79
  6. Step 6: Final answer
    x = 39,780.76

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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.