Home / 90,638.39-125,077.37-50,350.21

Finding the Fourth Proportional to 90,638.39, 125,077.37 and 50,350.21

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Solution

The fourth proportional to 90,638.39, 125,077.37 and 50,350.21 is: 69,481.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,638.39 : 125,077.37 = 50,350.21 : x
  2. Step 2: Convert to fraction form
    90,638.39/125,077.37 = 50,350.21/x
  3. Step 3: Cross multiply
    90,638.39x = 125,077.37 × 50,350.21
  4. Step 4: Simplify right side
    90,638.39x = 6,297,671,281.30
  5. Step 5: Solve for x
    x = 6,297,671,281.30/90,638.39
  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.