Home / 75,486.40-104,177.04-45,272.88

Finding the Fourth Proportional to 75,486.40, 104,177.04 and 45,272.88

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Solution

The fourth proportional to 75,486.40, 104,177.04 and 45,272.88 is: 62,480.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,486.40 : 104,177.04 = 45,272.88 : x
  2. Step 2: Convert to fraction form
    75,486.40/104,177.04 = 45,272.88/x
  3. Step 3: Cross multiply
    75,486.40x = 104,177.04 × 45,272.88
  4. Step 4: Simplify right side
    75,486.40x = 4,716,394,630.68
  5. Step 5: Solve for x
    x = 4,716,394,630.68/75,486.40
  6. Step 6: Final answer
    x = 62,480.06

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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.