Home / 81,664.18-112,696.02-51,469

Finding the Fourth Proportional to 81,664.18, 112,696.02 and 51,469

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Solution

The fourth proportional to 81,664.18, 112,696.02 and 51,469 is: 71,026.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,664.18 : 112,696.02 = 51,469 : x
  2. Step 2: Convert to fraction form
    81,664.18/112,696.02 = 51,469/x
  3. Step 3: Cross multiply
    81,664.18x = 112,696.02 × 51,469
  4. Step 4: Simplify right side
    81,664.18x = 5,800,351,453.38
  5. Step 5: Solve for x
    x = 5,800,351,453.38/81,664.18
  6. Step 6: Final answer
    x = 71,026.87

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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.