Home / 81,736.02-112,806.13-49,898.10

Finding the Fourth Proportional to 81,736.02, 112,806.13 and 49,898.10

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Solution

The fourth proportional to 81,736.02, 112,806.13 and 49,898.10 is: 68,865.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,736.02 : 112,806.13 = 49,898.10 : x
  2. Step 2: Convert to fraction form
    81,736.02/112,806.13 = 49,898.10/x
  3. Step 3: Cross multiply
    81,736.02x = 112,806.13 × 49,898.10
  4. Step 4: Simplify right side
    81,736.02x = 5,628,811,555.35
  5. Step 5: Solve for x
    x = 5,628,811,555.35/81,736.02
  6. Step 6: Final answer
    x = 68,865.74

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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.