Home / 75,685.84-104,441.07-45,057.31

Finding the Fourth Proportional to 75,685.84, 104,441.07 and 45,057.31

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Solution

The fourth proportional to 75,685.84, 104,441.07 and 45,057.31 is: 62,175.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,685.84 : 104,441.07 = 45,057.31 : x
  2. Step 2: Convert to fraction form
    75,685.84/104,441.07 = 45,057.31/x
  3. Step 3: Cross multiply
    75,685.84x = 104,441.07 × 45,057.31
  4. Step 4: Simplify right side
    75,685.84x = 4,705,833,667.72
  5. Step 5: Solve for x
    x = 4,705,833,667.72/75,685.84
  6. Step 6: Final answer
    x = 62,175.88

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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.