Home / 99,709.16-137,592.42-54,998.12

Finding the Fourth Proportional to 99,709.16, 137,592.42 and 54,998.12

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Solution

The fourth proportional to 99,709.16, 137,592.42 and 54,998.12 is: 75,893.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,709.16 : 137,592.42 = 54,998.12 : x
  2. Step 2: Convert to fraction form
    99,709.16/137,592.42 = 54,998.12/x
  3. Step 3: Cross multiply
    99,709.16x = 137,592.42 × 54,998.12
  4. Step 4: Simplify right side
    99,709.16x = 7,567,324,426.25
  5. Step 5: Solve for x
    x = 7,567,324,426.25/99,709.16
  6. Step 6: Final answer
    x = 75,893.97

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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.