Home / 75,128.37-103,676.92-43,297.20

Finding the Fourth Proportional to 75,128.37, 103,676.92 and 43,297.20

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Solution

The fourth proportional to 75,128.37, 103,676.92 and 43,297.20 is: 59,750.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,128.37 : 103,676.92 = 43,297.20 : x
  2. Step 2: Convert to fraction form
    75,128.37/103,676.92 = 43,297.20/x
  3. Step 3: Cross multiply
    75,128.37x = 103,676.92 × 43,297.20
  4. Step 4: Simplify right side
    75,128.37x = 4,488,920,340.62
  5. Step 5: Solve for x
    x = 4,488,920,340.62/75,128.37
  6. Step 6: Final answer
    x = 59,750.00

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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.