Home / 55,745.20-76,915.74-31,868.02

Finding the Fourth Proportional to 55,745.20, 76,915.74 and 31,868.02

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Solution

The fourth proportional to 55,745.20, 76,915.74 and 31,868.02 is: 43,970.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,745.20 : 76,915.74 = 31,868.02 : x
  2. Step 2: Convert to fraction form
    55,745.20/76,915.74 = 31,868.02/x
  3. Step 3: Cross multiply
    55,745.20x = 76,915.74 × 31,868.02
  4. Step 4: Simplify right side
    55,745.20x = 2,451,152,340.63
  5. Step 5: Solve for x
    x = 2,451,152,340.63/55,745.20
  6. Step 6: Final answer
    x = 43,970.64

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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.