Home / 83,103.28-114,678.48-47,289.92

Finding the Fourth Proportional to 83,103.28, 114,678.48 and 47,289.92

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Solution

The fourth proportional to 83,103.28, 114,678.48 and 47,289.92 is: 65,257.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,103.28 : 114,678.48 = 47,289.92 : x
  2. Step 2: Convert to fraction form
    83,103.28/114,678.48 = 47,289.92/x
  3. Step 3: Cross multiply
    83,103.28x = 114,678.48 × 47,289.92
  4. Step 4: Simplify right side
    83,103.28x = 5,423,136,144.92
  5. Step 5: Solve for x
    x = 5,423,136,144.92/83,103.28
  6. Step 6: Final answer
    x = 65,257.79

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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.