Home / 104,789.44-144,609.76-57,043.20

Finding the Fourth Proportional to 104,789.44, 144,609.76 and 57,043.20

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Solution

The fourth proportional to 104,789.44, 144,609.76 and 57,043.20 is: 78,719.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,789.44 : 144,609.76 = 57,043.20 : x
  2. Step 2: Convert to fraction form
    104,789.44/144,609.76 = 57,043.20/x
  3. Step 3: Cross multiply
    104,789.44x = 144,609.76 × 57,043.20
  4. Step 4: Simplify right side
    104,789.44x = 8,249,003,461.63
  5. Step 5: Solve for x
    x = 8,249,003,461.63/104,789.44
  6. Step 6: Final answer
    x = 78,719.80

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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.