Home / 68,303.70-102,449.79-38,628.18

Finding the Fourth Proportional to 68,303.70, 102,449.79 and 38,628.18

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Solution

The fourth proportional to 68,303.70, 102,449.79 and 38,628.18 is: 57,939.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,303.70 : 102,449.79 = 38,628.18 : x
  2. Step 2: Convert to fraction form
    68,303.70/102,449.79 = 38,628.18/x
  3. Step 3: Cross multiply
    68,303.70x = 102,449.79 × 38,628.18
  4. Step 4: Simplify right side
    68,303.70x = 3,957,448,929.08
  5. Step 5: Solve for x
    x = 3,957,448,929.08/68,303.70
  6. Step 6: Final answer
    x = 57,939.01

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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.