Home / 42,839.10-64,274.02-19,144.67

Finding the Fourth Proportional to 42,839.10, 64,274.02 and 19,144.67

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Solution

The fourth proportional to 42,839.10, 64,274.02 and 19,144.67 is: 28,723.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,839.10 : 64,274.02 = 19,144.67 : x
  2. Step 2: Convert to fraction form
    42,839.10/64,274.02 = 19,144.67/x
  3. Step 3: Cross multiply
    42,839.10x = 64,274.02 × 19,144.67
  4. Step 4: Simplify right side
    42,839.10x = 1,230,504,533.24
  5. Step 5: Solve for x
    x = 1,230,504,533.24/42,839.10
  6. Step 6: Final answer
    x = 28,723.87

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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.