Home / 80,786.75-111,494.36-47,280.83

Finding the Fourth Proportional to 80,786.75, 111,494.36 and 47,280.83

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Solution

The fourth proportional to 80,786.75, 111,494.36 and 47,280.83 is: 65,252.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,786.75 : 111,494.36 = 47,280.83 : x
  2. Step 2: Convert to fraction form
    80,786.75/111,494.36 = 47,280.83/x
  3. Step 3: Cross multiply
    80,786.75x = 111,494.36 × 47,280.83
  4. Step 4: Simplify right side
    80,786.75x = 5,271,545,644.71
  5. Step 5: Solve for x
    x = 5,271,545,644.71/80,786.75
  6. Step 6: Final answer
    x = 65,252.60

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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.