Home / 75,739.48-104,503.64-43,472.12

Finding the Fourth Proportional to 75,739.48, 104,503.64 and 43,472.12

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Solution

The fourth proportional to 75,739.48, 104,503.64 and 43,472.12 is: 59,981.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,739.48 : 104,503.64 = 43,472.12 : x
  2. Step 2: Convert to fraction form
    75,739.48/104,503.64 = 43,472.12/x
  3. Step 3: Cross multiply
    75,739.48x = 104,503.64 × 43,472.12
  4. Step 4: Simplify right side
    75,739.48x = 4,542,994,625.94
  5. Step 5: Solve for x
    x = 4,542,994,625.94/75,739.48
  6. Step 6: Final answer
    x = 59,981.86

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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.