Home / 99,690.52-137,571.94-57,249.36

Finding the Fourth Proportional to 99,690.52, 137,571.94 and 57,249.36

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Solution

The fourth proportional to 99,690.52, 137,571.94 and 57,249.36 is: 79,003.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,690.52 : 137,571.94 = 57,249.36 : x
  2. Step 2: Convert to fraction form
    99,690.52/137,571.94 = 57,249.36/x
  3. Step 3: Cross multiply
    99,690.52x = 137,571.94 × 57,249.36
  4. Step 4: Simplify right side
    99,690.52x = 7,875,905,518.96
  5. Step 5: Solve for x
    x = 7,875,905,518.96/99,690.52
  6. Step 6: Final answer
    x = 79,003.56

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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.