Home / 99,370.67-137,133.27-54,049.64

Finding the Fourth Proportional to 99,370.67, 137,133.27 and 54,049.64

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Solution

The fourth proportional to 99,370.67, 137,133.27 and 54,049.64 is: 74,589.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,370.67 : 137,133.27 = 54,049.64 : x
  2. Step 2: Convert to fraction form
    99,370.67/137,133.27 = 54,049.64/x
  3. Step 3: Cross multiply
    99,370.67x = 137,133.27 × 54,049.64
  4. Step 4: Simplify right side
    99,370.67x = 7,412,003,189.86
  5. Step 5: Solve for x
    x = 7,412,003,189.86/99,370.67
  6. Step 6: Final answer
    x = 74,589.45

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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.