Home / 55,124.20-82,467.60-47,809.90

Finding the Fourth Proportional to 55,124.20, 82,467.60 and 47,809.90

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Solution

The fourth proportional to 55,124.20, 82,467.60 and 47,809.90 is: 71,525.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,124.20 : 82,467.60 = 47,809.90 : x
  2. Step 2: Convert to fraction form
    55,124.20/82,467.60 = 47,809.90/x
  3. Step 3: Cross multiply
    55,124.20x = 82,467.60 × 47,809.90
  4. Step 4: Simplify right side
    55,124.20x = 3,942,767,709.24
  5. Step 5: Solve for x
    x = 3,942,767,709.24/55,124.20
  6. Step 6: Final answer
    x = 71,525.17

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.