Home / 74,269.90-111,514.20-57,648.70

Finding the Fourth Proportional to 74,269.90, 111,514.20 and 57,648.70

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Solution

The fourth proportional to 74,269.90, 111,514.20 and 57,648.70 is: 86,557.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,269.90 : 111,514.20 = 57,648.70 : x
  2. Step 2: Convert to fraction form
    74,269.90/111,514.20 = 57,648.70/x
  3. Step 3: Cross multiply
    74,269.90x = 111,514.20 × 57,648.70
  4. Step 4: Simplify right side
    74,269.90x = 6,428,648,661.54
  5. Step 5: Solve for x
    x = 6,428,648,661.54/74,269.90
  6. Step 6: Final answer
    x = 86,557.93

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.