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Finding the Fourth Proportional to 99,634.83, 137,493.31 and 54,313.70

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Solution

The fourth proportional to 99,634.83, 137,493.31 and 54,313.70 is: 74,951.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,634.83 : 137,493.31 = 54,313.70 : x
  2. Step 2: Convert to fraction form
    99,634.83/137,493.31 = 54,313.70/x
  3. Step 3: Cross multiply
    99,634.83x = 137,493.31 × 54,313.70
  4. Step 4: Simplify right side
    99,634.83x = 7,467,770,391.35
  5. Step 5: Solve for x
    x = 7,467,770,391.35/99,634.83
  6. Step 6: Final answer
    x = 74,951.40

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1.5x scale

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.