Home / 42,892.76-64,313.17-19,195.90

Finding the Fourth Proportional to 42,892.76, 64,313.17 and 19,195.90

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Solution

The fourth proportional to 42,892.76, 64,313.17 and 19,195.90 is: 28,782.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,892.76 : 64,313.17 = 19,195.90 : x
  2. Step 2: Convert to fraction form
    42,892.76/64,313.17 = 19,195.90/x
  3. Step 3: Cross multiply
    42,892.76x = 64,313.17 × 19,195.90
  4. Step 4: Simplify right side
    42,892.76x = 1,234,548,906.43
  5. Step 5: Solve for x
    x = 1,234,548,906.43/42,892.76
  6. Step 6: Final answer
    x = 28,782.22

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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.