Home / 90,933.22-125,486.98-50,644.63

Finding the Fourth Proportional to 90,933.22, 125,486.98 and 50,644.63

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Solution

The fourth proportional to 90,933.22, 125,486.98 and 50,644.63 is: 69,889.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,933.22 : 125,486.98 = 50,644.63 : x
  2. Step 2: Convert to fraction form
    90,933.22/125,486.98 = 50,644.63/x
  3. Step 3: Cross multiply
    90,933.22x = 125,486.98 × 50,644.63
  4. Step 4: Simplify right side
    90,933.22x = 6,355,241,671.92
  5. Step 5: Solve for x
    x = 6,355,241,671.92/90,933.22
  6. Step 6: Final answer
    x = 69,889.11

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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.