Home / 99,928.88-137,903.66-54,608.77

Finding the Fourth Proportional to 99,928.88, 137,903.66 and 54,608.77

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Solution

The fourth proportional to 99,928.88, 137,903.66 and 54,608.77 is: 75,361.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,928.88 : 137,903.66 = 54,608.77 : x
  2. Step 2: Convert to fraction form
    99,928.88/137,903.66 = 54,608.77/x
  3. Step 3: Cross multiply
    99,928.88x = 137,903.66 × 54,608.77
  4. Step 4: Simplify right side
    99,928.88x = 7,530,748,978.05
  5. Step 5: Solve for x
    x = 7,530,748,978.05/99,928.88
  6. Step 6: Final answer
    x = 75,361.09

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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.