Home / 99,705.26-137,591.09-54,383.74

Finding the Fourth Proportional to 99,705.26, 137,591.09 and 54,383.74

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Solution

The fourth proportional to 99,705.26, 137,591.09 and 54,383.74 is: 75,048.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,705.26 : 137,591.09 = 54,383.74 : x
  2. Step 2: Convert to fraction form
    99,705.26/137,591.09 = 54,383.74/x
  3. Step 3: Cross multiply
    99,705.26x = 137,591.09 × 54,383.74
  4. Step 4: Simplify right side
    99,705.26x = 7,482,717,652.92
  5. Step 5: Solve for x
    x = 7,482,717,652.92/99,705.26
  6. Step 6: Final answer
    x = 75,048.37

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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.