Home / 75,128.48-103,676.64-43,296.68

Finding the Fourth Proportional to 75,128.48, 103,676.64 and 43,296.68

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Solution

The fourth proportional to 75,128.48, 103,676.64 and 43,296.68 is: 59,749.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,128.48 : 103,676.64 = 43,296.68 : x
  2. Step 2: Convert to fraction form
    75,128.48/103,676.64 = 43,296.68/x
  3. Step 3: Cross multiply
    75,128.48x = 103,676.64 × 43,296.68
  4. Step 4: Simplify right side
    75,128.48x = 4,488,854,305.56
  5. Step 5: Solve for x
    x = 4,488,854,305.56/75,128.48
  6. Step 6: Final answer
    x = 59,749.04

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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.