Home / 312,556.48-468,862.34-87,918.77

Finding the Fourth Proportional to 312,556.48, 468,862.34 and 87,918.77

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Solution

The fourth proportional to 312,556.48, 468,862.34 and 87,918.77 is: 131,885.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,556.48 : 468,862.34 = 87,918.77 : x
  2. Step 2: Convert to fraction form
    312,556.48/468,862.34 = 87,918.77/x
  3. Step 3: Cross multiply
    312,556.48x = 468,862.34 × 87,918.77
  4. Step 4: Simplify right side
    312,556.48x = 41,221,800,964.68
  5. Step 5: Solve for x
    x = 41,221,800,964.68/312,556.48
  6. Step 6: Final answer
    x = 131,885.93

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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.