Home / 75,685.40-104,441.78-41,692.72

Finding the Fourth Proportional to 75,685.40, 104,441.78 and 41,692.72

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Solution

The fourth proportional to 75,685.40, 104,441.78 and 41,692.72 is: 57,533.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,685.40 : 104,441.78 = 41,692.72 : x
  2. Step 2: Convert to fraction form
    75,685.40/104,441.78 = 41,692.72/x
  3. Step 3: Cross multiply
    75,685.40x = 104,441.78 × 41,692.72
  4. Step 4: Simplify right side
    75,685.40x = 4,354,461,889.84
  5. Step 5: Solve for x
    x = 4,354,461,889.84/75,685.40
  6. Step 6: Final answer
    x = 57,533.71

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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.