Home / 76,843.06-106,043.88-42,853.69

Finding the Fourth Proportional to 76,843.06, 106,043.88 and 42,853.69

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Solution

The fourth proportional to 76,843.06, 106,043.88 and 42,853.69 is: 59,138.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,843.06 : 106,043.88 = 42,853.69 : x
  2. Step 2: Convert to fraction form
    76,843.06/106,043.88 = 42,853.69/x
  3. Step 3: Cross multiply
    76,843.06x = 106,043.88 × 42,853.69
  4. Step 4: Simplify right side
    76,843.06x = 4,544,371,559.92
  5. Step 5: Solve for x
    x = 4,544,371,559.92/76,843.06
  6. Step 6: Final answer
    x = 59,138.35

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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.