Home / 90,843.21-125,256.38-62,176.68

Finding the Fourth Proportional to 90,843.21, 125,256.38 and 62,176.68

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Solution

The fourth proportional to 90,843.21, 125,256.38 and 62,176.68 is: 85,730.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,843.21 : 125,256.38 = 62,176.68 : x
  2. Step 2: Convert to fraction form
    90,843.21/125,256.38 = 62,176.68/x
  3. Step 3: Cross multiply
    90,843.21x = 125,256.38 × 62,176.68
  4. Step 4: Simplify right side
    90,843.21x = 7,788,025,546.34
  5. Step 5: Solve for x
    x = 7,788,025,546.34/90,843.21
  6. Step 6: Final answer
    x = 85,730.41

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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.