Home / 68,660.25-102,475.59-64,176.21

Finding the Fourth Proportional to 68,660.25, 102,475.59 and 64,176.21

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Solution

The fourth proportional to 68,660.25, 102,475.59 and 64,176.21 is: 95,783.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,660.25 : 102,475.59 = 64,176.21 : x
  2. Step 2: Convert to fraction form
    68,660.25/102,475.59 = 64,176.21/x
  3. Step 3: Cross multiply
    68,660.25x = 102,475.59 × 64,176.21
  4. Step 4: Simplify right side
    68,660.25x = 6,576,494,983.71
  5. Step 5: Solve for x
    x = 6,576,494,983.71/68,660.25
  6. Step 6: Final answer
    x = 95,783.15

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.