Home / 75,682.81-104,436.88-45,054.28

Finding the Fourth Proportional to 75,682.81, 104,436.88 and 45,054.28

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Solution

The fourth proportional to 75,682.81, 104,436.88 and 45,054.28 is: 62,171.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,682.81 : 104,436.88 = 45,054.28 : x
  2. Step 2: Convert to fraction form
    75,682.81/104,436.88 = 45,054.28/x
  3. Step 3: Cross multiply
    75,682.81x = 104,436.88 × 45,054.28
  4. Step 4: Simplify right side
    75,682.81x = 4,705,328,433.85
  5. Step 5: Solve for x
    x = 4,705,328,433.85/75,682.81
  6. Step 6: Final answer
    x = 62,171.69

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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.