Home / 75,487.40-104,178.42-45,273.88

Finding the Fourth Proportional to 75,487.40, 104,178.42 and 45,273.88

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Solution

The fourth proportional to 75,487.40, 104,178.42 and 45,273.88 is: 62,481.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,487.40 : 104,178.42 = 45,273.88 : x
  2. Step 2: Convert to fraction form
    75,487.40/104,178.42 = 45,273.88/x
  3. Step 3: Cross multiply
    75,487.40x = 104,178.42 × 45,273.88
  4. Step 4: Simplify right side
    75,487.40x = 4,716,561,285.67
  5. Step 5: Solve for x
    x = 4,716,561,285.67/75,487.40
  6. Step 6: Final answer
    x = 62,481.44

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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.