Home / 75,120.48-103,671.26-43,291.43

Finding the Fourth Proportional to 75,120.48, 103,671.26 and 43,291.43

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Solution

The fourth proportional to 75,120.48, 103,671.26 and 43,291.43 is: 59,745.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,120.48 : 103,671.26 = 43,291.43 : x
  2. Step 2: Convert to fraction form
    75,120.48/103,671.26 = 43,291.43/x
  3. Step 3: Cross multiply
    75,120.48x = 103,671.26 × 43,291.43
  4. Step 4: Simplify right side
    75,120.48x = 4,488,076,911.60
  5. Step 5: Solve for x
    x = 4,488,076,911.60/75,120.48
  6. Step 6: Final answer
    x = 59,745.05

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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.