Home / 99,829.82-137,764.10-54,507.66

Finding the Fourth Proportional to 99,829.82, 137,764.10 and 54,507.66

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Solution

The fourth proportional to 99,829.82, 137,764.10 and 54,507.66 is: 75,220.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,829.82 : 137,764.10 = 54,507.66 : x
  2. Step 2: Convert to fraction form
    99,829.82/137,764.10 = 54,507.66/x
  3. Step 3: Cross multiply
    99,829.82x = 137,764.10 × 54,507.66
  4. Step 4: Simplify right side
    99,829.82x = 7,509,198,859.28
  5. Step 5: Solve for x
    x = 7,509,198,859.28/99,829.82
  6. Step 6: Final answer
    x = 75,220.00

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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.