Home / 76,021.78-114,089.47-28,683.56

Finding the Fourth Proportional to 76,021.78, 114,089.47 and 28,683.56

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Solution

The fourth proportional to 76,021.78, 114,089.47 and 28,683.56 is: 43,046.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,021.78 : 114,089.47 = 28,683.56 : x
  2. Step 2: Convert to fraction form
    76,021.78/114,089.47 = 28,683.56/x
  3. Step 3: Cross multiply
    76,021.78x = 114,089.47 × 28,683.56
  4. Step 4: Simplify right side
    76,021.78x = 3,272,491,587.67
  5. Step 5: Solve for x
    x = 3,272,491,587.67/76,021.78
  6. Step 6: Final answer
    x = 43,046.76

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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.