Home / 76,256.94-114,371.36-31,871.78

Finding the Fourth Proportional to 76,256.94, 114,371.36 and 31,871.78

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Solution

The fourth proportional to 76,256.94, 114,371.36 and 31,871.78 is: 47,801.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,256.94 : 114,371.36 = 31,871.78 : x
  2. Step 2: Convert to fraction form
    76,256.94/114,371.36 = 31,871.78/x
  3. Step 3: Cross multiply
    76,256.94x = 114,371.36 × 31,871.78
  4. Step 4: Simplify right side
    76,256.94x = 3,645,218,824.22
  5. Step 5: Solve for x
    x = 3,645,218,824.22/76,256.94
  6. Step 6: Final answer
    x = 47,801.80

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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.