Home / 84,401.48-116,419.14-54,138.87

Finding the Fourth Proportional to 84,401.48, 116,419.14 and 54,138.87

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Solution

The fourth proportional to 84,401.48, 116,419.14 and 54,138.87 is: 74,676.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,401.48 : 116,419.14 = 54,138.87 : x
  2. Step 2: Convert to fraction form
    84,401.48/116,419.14 = 54,138.87/x
  3. Step 3: Cross multiply
    84,401.48x = 116,419.14 × 54,138.87
  4. Step 4: Simplify right side
    84,401.48x = 6,302,800,685.97
  5. Step 5: Solve for x
    x = 6,302,800,685.97/84,401.48
  6. Step 6: Final answer
    x = 74,676.42

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1.5x scale

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.