Home / 83,215.08-114,823.97-47,400.54

Finding the Fourth Proportional to 83,215.08, 114,823.97 and 47,400.54

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Solution

The fourth proportional to 83,215.08, 114,823.97 and 47,400.54 is: 65,405.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,215.08 : 114,823.97 = 47,400.54 : x
  2. Step 2: Convert to fraction form
    83,215.08/114,823.97 = 47,400.54/x
  3. Step 3: Cross multiply
    83,215.08x = 114,823.97 × 47,400.54
  4. Step 4: Simplify right side
    83,215.08x = 5,442,717,945.94
  5. Step 5: Solve for x
    x = 5,442,717,945.94/83,215.08
  6. Step 6: Final answer
    x = 65,405.43

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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.