Home / 99,564.21-137,394.36-54,241.94

Finding the Fourth Proportional to 99,564.21, 137,394.36 and 54,241.94

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Solution

The fourth proportional to 99,564.21, 137,394.36 and 54,241.94 is: 74,851.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,564.21 : 137,394.36 = 54,241.94 : x
  2. Step 2: Convert to fraction form
    99,564.21/137,394.36 = 54,241.94/x
  3. Step 3: Cross multiply
    99,564.21x = 137,394.36 × 54,241.94
  4. Step 4: Simplify right side
    99,564.21x = 7,452,536,974.94
  5. Step 5: Solve for x
    x = 7,452,536,974.94/99,564.21
  6. Step 6: Final answer
    x = 74,851.57

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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.