Home / 68,726.37-102,914.55-45,281.73

Finding the Fourth Proportional to 68,726.37, 102,914.55 and 45,281.73

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Solution

The fourth proportional to 68,726.37, 102,914.55 and 45,281.73 is: 67,807.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,726.37 : 102,914.55 = 45,281.73 : x
  2. Step 2: Convert to fraction form
    68,726.37/102,914.55 = 45,281.73/x
  3. Step 3: Cross multiply
    68,726.37x = 102,914.55 × 45,281.73
  4. Step 4: Simplify right side
    68,726.37x = 4,660,148,866.17
  5. Step 5: Solve for x
    x = 4,660,148,866.17/68,726.37
  6. Step 6: Final answer
    x = 67,807.29

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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.