Home / 99,326.12-137,069.92-54,003.98

Finding the Fourth Proportional to 99,326.12, 137,069.92 and 54,003.98

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Solution

The fourth proportional to 99,326.12, 137,069.92 and 54,003.98 is: 74,525.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,326.12 : 137,069.92 = 54,003.98 : x
  2. Step 2: Convert to fraction form
    99,326.12/137,069.92 = 54,003.98/x
  3. Step 3: Cross multiply
    99,326.12x = 137,069.92 × 54,003.98
  4. Step 4: Simplify right side
    99,326.12x = 7,402,321,628.46
  5. Step 5: Solve for x
    x = 7,402,321,628.46/99,326.12
  6. Step 6: Final answer
    x = 74,525.43

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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.