Home / 68,141.66-102,228.89-28,710.05

Finding the Fourth Proportional to 68,141.66, 102,228.89 and 28,710.05

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Solution

The fourth proportional to 68,141.66, 102,228.89 and 28,710.05 is: 43,071.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,141.66 : 102,228.89 = 28,710.05 : x
  2. Step 2: Convert to fraction form
    68,141.66/102,228.89 = 28,710.05/x
  3. Step 3: Cross multiply
    68,141.66x = 102,228.89 × 28,710.05
  4. Step 4: Simplify right side
    68,141.66x = 2,934,995,888.65
  5. Step 5: Solve for x
    x = 2,934,995,888.65/68,141.66
  6. Step 6: Final answer
    x = 43,071.98

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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.