Home / 76,616.10-105,729.93-44,778.69

Finding the Fourth Proportional to 76,616.10, 105,729.93 and 44,778.69

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Solution

The fourth proportional to 76,616.10, 105,729.93 and 44,778.69 is: 61,794.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,616.10 : 105,729.93 = 44,778.69 : x
  2. Step 2: Convert to fraction form
    76,616.10/105,729.93 = 44,778.69/x
  3. Step 3: Cross multiply
    76,616.10x = 105,729.93 × 44,778.69
  4. Step 4: Simplify right side
    76,616.10x = 4,734,447,759.19
  5. Step 5: Solve for x
    x = 4,734,447,759.19/76,616.10
  6. Step 6: Final answer
    x = 61,794.42

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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.