Home / 85,946.40-128,919.60-26,786.82

Finding the Fourth Proportional to 85,946.40, 128,919.60 and 26,786.82

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Solution

The fourth proportional to 85,946.40, 128,919.60 and 26,786.82 is: 40,180.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,946.40 : 128,919.60 = 26,786.82 : x
  2. Step 2: Convert to fraction form
    85,946.40/128,919.60 = 26,786.82/x
  3. Step 3: Cross multiply
    85,946.40x = 128,919.60 × 26,786.82
  4. Step 4: Simplify right side
    85,946.40x = 3,453,346,119.67
  5. Step 5: Solve for x
    x = 3,453,346,119.67/85,946.40
  6. Step 6: Final answer
    x = 40,180.23

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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.