Home / 99,451.25-137,242.73-54,739.25

Finding the Fourth Proportional to 99,451.25, 137,242.73 and 54,739.25

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Solution

The fourth proportional to 99,451.25, 137,242.73 and 54,739.25 is: 75,540.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,451.25 : 137,242.73 = 54,739.25 : x
  2. Step 2: Convert to fraction form
    99,451.25/137,242.73 = 54,739.25/x
  3. Step 3: Cross multiply
    99,451.25x = 137,242.73 × 54,739.25
  4. Step 4: Simplify right side
    99,451.25x = 7,512,564,108.15
  5. Step 5: Solve for x
    x = 7,512,564,108.15/99,451.25
  6. Step 6: Final answer
    x = 75,540.17

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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.