Home / 284,039.09-426,082.32-81,635.88

Finding the Fourth Proportional to 284,039.09, 426,082.32 and 81,635.88

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Solution

The fourth proportional to 284,039.09, 426,082.32 and 81,635.88 is: 122,460.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,039.09 : 426,082.32 = 81,635.88 : x
  2. Step 2: Convert to fraction form
    284,039.09/426,082.32 = 81,635.88/x
  3. Step 3: Cross multiply
    284,039.09x = 426,082.32 × 81,635.88
  4. Step 4: Simplify right side
    284,039.09x = 34,783,605,145.64
  5. Step 5: Solve for x
    x = 34,783,605,145.64/284,039.09
  6. Step 6: Final answer
    x = 122,460.63

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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.