Home / 55,739.78-76,915.80-33,074.86

Finding the Fourth Proportional to 55,739.78, 76,915.80 and 33,074.86

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Solution

The fourth proportional to 55,739.78, 76,915.80 and 33,074.86 is: 45,640.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,739.78 : 76,915.80 = 33,074.86 : x
  2. Step 2: Convert to fraction form
    55,739.78/76,915.80 = 33,074.86/x
  3. Step 3: Cross multiply
    55,739.78x = 76,915.80 × 33,074.86
  4. Step 4: Simplify right side
    55,739.78x = 2,543,979,124.50
  5. Step 5: Solve for x
    x = 2,543,979,124.50/55,739.78
  6. Step 6: Final answer
    x = 45,640.28

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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.