Home / 42,771.05-64,063.08-21,674.88

Finding the Fourth Proportional to 42,771.05, 64,063.08 and 21,674.88

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Solution

The fourth proportional to 42,771.05, 64,063.08 and 21,674.88 is: 32,464.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,771.05 : 64,063.08 = 21,674.88 : x
  2. Step 2: Convert to fraction form
    42,771.05/64,063.08 = 21,674.88/x
  3. Step 3: Cross multiply
    42,771.05x = 64,063.08 × 21,674.88
  4. Step 4: Simplify right side
    42,771.05x = 1,388,559,571.43
  5. Step 5: Solve for x
    x = 1,388,559,571.43/42,771.05
  6. Step 6: Final answer
    x = 32,464.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.