Home / 83,708.14-115,484.68-47,401.25

Finding the Fourth Proportional to 83,708.14, 115,484.68 and 47,401.25

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Solution

The fourth proportional to 83,708.14, 115,484.68 and 47,401.25 is: 65,395.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,708.14 : 115,484.68 = 47,401.25 : x
  2. Step 2: Convert to fraction form
    83,708.14/115,484.68 = 47,401.25/x
  3. Step 3: Cross multiply
    83,708.14x = 115,484.68 × 47,401.25
  4. Step 4: Simplify right side
    83,708.14x = 5,474,118,187.85
  5. Step 5: Solve for x
    x = 5,474,118,187.85/83,708.14
  6. Step 6: Final answer
    x = 65,395.29

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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.