Home / 78,085.16-107,757.24-44,100.80

Finding the Fourth Proportional to 78,085.16, 107,757.24 and 44,100.80

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Solution

The fourth proportional to 78,085.16, 107,757.24 and 44,100.80 is: 60,858.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,085.16 : 107,757.24 = 44,100.80 : x
  2. Step 2: Convert to fraction form
    78,085.16/107,757.24 = 44,100.80/x
  3. Step 3: Cross multiply
    78,085.16x = 107,757.24 × 44,100.80
  4. Step 4: Simplify right side
    78,085.16x = 4,752,180,489.79
  5. Step 5: Solve for x
    x = 4,752,180,489.79/78,085.16
  6. Step 6: Final answer
    x = 60,858.95

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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.