Home / 84,078.03-116,021.85-47,289.75

Finding the Fourth Proportional to 84,078.03, 116,021.85 and 47,289.75

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Solution

The fourth proportional to 84,078.03, 116,021.85 and 47,289.75 is: 65,256.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,078.03 : 116,021.85 = 47,289.75 : x
  2. Step 2: Convert to fraction form
    84,078.03/116,021.85 = 47,289.75/x
  3. Step 3: Cross multiply
    84,078.03x = 116,021.85 × 47,289.75
  4. Step 4: Simplify right side
    84,078.03x = 5,486,644,281.04
  5. Step 5: Solve for x
    x = 5,486,644,281.04/84,078.03
  6. Step 6: Final answer
    x = 65,256.58

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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.