Home / 57,040.75-78,716.51-31,895.11

Finding the Fourth Proportional to 57,040.75, 78,716.51 and 31,895.11

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Solution

The fourth proportional to 57,040.75, 78,716.51 and 31,895.11 is: 44,015.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,040.75 : 78,716.51 = 31,895.11 : x
  2. Step 2: Convert to fraction form
    57,040.75/78,716.51 = 31,895.11/x
  3. Step 3: Cross multiply
    57,040.75x = 78,716.51 × 31,895.11
  4. Step 4: Simplify right side
    57,040.75x = 2,510,671,745.27
  5. Step 5: Solve for x
    x = 2,510,671,745.27/57,040.75
  6. Step 6: Final answer
    x = 44,015.41

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.