Home / 75,435.18-104,099.82-40,980.62

Finding the Fourth Proportional to 75,435.18, 104,099.82 and 40,980.62

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Solution

The fourth proportional to 75,435.18, 104,099.82 and 40,980.62 is: 56,552.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,435.18 : 104,099.82 = 40,980.62 : x
  2. Step 2: Convert to fraction form
    75,435.18/104,099.82 = 40,980.62/x
  3. Step 3: Cross multiply
    75,435.18x = 104,099.82 × 40,980.62
  4. Step 4: Simplify right side
    75,435.18x = 4,266,074,644.99
  5. Step 5: Solve for x
    x = 4,266,074,644.99/75,435.18
  6. Step 6: Final answer
    x = 56,552.85

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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.