Home / 72,748.44-100,391.82-40,917.30

Finding the Fourth Proportional to 72,748.44, 100,391.82 and 40,917.30

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Solution

The fourth proportional to 72,748.44, 100,391.82 and 40,917.30 is: 56,465.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,748.44 : 100,391.82 = 40,917.30 : x
  2. Step 2: Convert to fraction form
    72,748.44/100,391.82 = 40,917.30/x
  3. Step 3: Cross multiply
    72,748.44x = 100,391.82 × 40,917.30
  4. Step 4: Simplify right side
    72,748.44x = 4,107,762,216.49
  5. Step 5: Solve for x
    x = 4,107,762,216.49/72,748.44
  6. Step 6: Final answer
    x = 56,465.30

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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.