Home / 87,029.02-120,100.25-49,303.27

Finding the Fourth Proportional to 87,029.02, 120,100.25 and 49,303.27

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Solution

The fourth proportional to 87,029.02, 120,100.25 and 49,303.27 is: 68,038.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,029.02 : 120,100.25 = 49,303.27 : x
  2. Step 2: Convert to fraction form
    87,029.02/120,100.25 = 49,303.27/x
  3. Step 3: Cross multiply
    87,029.02x = 120,100.25 × 49,303.27
  4. Step 4: Simplify right side
    87,029.02x = 5,921,334,205.80
  5. Step 5: Solve for x
    x = 5,921,334,205.80/87,029.02
  6. Step 6: Final answer
    x = 68,038.62

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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.