Home / 90,692.42-125,159.76-50,406.84

Finding the Fourth Proportional to 90,692.42, 125,159.76 and 50,406.84

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Solution

The fourth proportional to 90,692.42, 125,159.76 and 50,406.84 is: 69,563.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,692.42 : 125,159.76 = 50,406.84 : x
  2. Step 2: Convert to fraction form
    90,692.42/125,159.76 = 50,406.84/x
  3. Step 3: Cross multiply
    90,692.42x = 125,159.76 × 50,406.84
  4. Step 4: Simplify right side
    90,692.42x = 6,308,907,996.76
  5. Step 5: Solve for x
    x = 6,308,907,996.76/90,692.42
  6. Step 6: Final answer
    x = 69,563.78

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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.