Home / 90,636.03-125,077.86-50,348.70

Finding the Fourth Proportional to 90,636.03, 125,077.86 and 50,348.70

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Solution

The fourth proportional to 90,636.03, 125,077.86 and 50,348.70 is: 69,481.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,636.03 : 125,077.86 = 50,348.70 : x
  2. Step 2: Convert to fraction form
    90,636.03/125,077.86 = 50,348.70/x
  3. Step 3: Cross multiply
    90,636.03x = 125,077.86 × 50,348.70
  4. Step 4: Simplify right side
    90,636.03x = 6,297,507,649.78
  5. Step 5: Solve for x
    x = 6,297,507,649.78/90,636.03
  6. Step 6: Final answer
    x = 69,481.28

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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.