Home / 80,579.16-120,868.74-25,175.16

Finding the Fourth Proportional to 80,579.16, 120,868.74 and 25,175.16

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Solution

The fourth proportional to 80,579.16, 120,868.74 and 25,175.16 is: 37,762.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,579.16 : 120,868.74 = 25,175.16 : x
  2. Step 2: Convert to fraction form
    80,579.16/120,868.74 = 25,175.16/x
  3. Step 3: Cross multiply
    80,579.16x = 120,868.74 × 25,175.16
  4. Step 4: Simplify right side
    80,579.16x = 3,042,889,868.50
  5. Step 5: Solve for x
    x = 3,042,889,868.50/80,579.16
  6. Step 6: Final answer
    x = 37,762.74

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1.5x scale

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.