Home / 68,645.40-94,714.34-39,947.69

Finding the Fourth Proportional to 68,645.40, 94,714.34 and 39,947.69

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Solution

The fourth proportional to 68,645.40, 94,714.34 and 39,947.69 is: 55,118.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,645.40 : 94,714.34 = 39,947.69 : x
  2. Step 2: Convert to fraction form
    68,645.40/94,714.34 = 39,947.69/x
  3. Step 3: Cross multiply
    68,645.40x = 94,714.34 × 39,947.69
  4. Step 4: Simplify right side
    68,645.40x = 3,783,619,092.87
  5. Step 5: Solve for x
    x = 3,783,619,092.87/68,645.40
  6. Step 6: Final answer
    x = 55,118.32

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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.