Home / 75,721.44-104,463.48-43,878.72

Finding the Fourth Proportional to 75,721.44, 104,463.48 and 43,878.72

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Solution

The fourth proportional to 75,721.44, 104,463.48 and 43,878.72 is: 60,534.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,721.44 : 104,463.48 = 43,878.72 : x
  2. Step 2: Convert to fraction form
    75,721.44/104,463.48 = 43,878.72/x
  3. Step 3: Cross multiply
    75,721.44x = 104,463.48 × 43,878.72
  4. Step 4: Simplify right side
    75,721.44x = 4,583,723,789.15
  5. Step 5: Solve for x
    x = 4,583,723,789.15/75,721.44
  6. Step 6: Final answer
    x = 60,534.03

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1.5x scale

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.