Home / 80,453.04-111,019.86-44,640.78

Finding the Fourth Proportional to 80,453.04, 111,019.86 and 44,640.78

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Solution

The fourth proportional to 80,453.04, 111,019.86 and 44,640.78 is: 61,601.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,453.04 : 111,019.86 = 44,640.78 : x
  2. Step 2: Convert to fraction form
    80,453.04/111,019.86 = 44,640.78/x
  3. Step 3: Cross multiply
    80,453.04x = 111,019.86 × 44,640.78
  4. Step 4: Simplify right side
    80,453.04x = 4,956,013,145.89
  5. Step 5: Solve for x
    x = 4,956,013,145.89/80,453.04
  6. Step 6: Final answer
    x = 61,601.32

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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.