Home / 99,644.45-137,431.58-63,837.79

Finding the Fourth Proportional to 99,644.45, 137,431.58 and 63,837.79

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Solution

The fourth proportional to 99,644.45, 137,431.58 and 63,837.79 is: 88,046.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,644.45 : 137,431.58 = 63,837.79 : x
  2. Step 2: Convert to fraction form
    99,644.45/137,431.58 = 63,837.79/x
  3. Step 3: Cross multiply
    99,644.45x = 137,431.58 × 63,837.79
  4. Step 4: Simplify right side
    99,644.45x = 8,773,327,680.64
  5. Step 5: Solve for x
    x = 8,773,327,680.64/99,644.45
  6. Step 6: Final answer
    x = 88,046.33

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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.