Home / 99,992.11-137,989.36-54,673.02

Finding the Fourth Proportional to 99,992.11, 137,989.36 and 54,673.02

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Solution

The fourth proportional to 99,992.11, 137,989.36 and 54,673.02 is: 75,448.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,992.11 : 137,989.36 = 54,673.02 : x
  2. Step 2: Convert to fraction form
    99,992.11/137,989.36 = 54,673.02/x
  3. Step 3: Cross multiply
    99,992.11x = 137,989.36 × 54,673.02
  4. Step 4: Simplify right side
    99,992.11x = 7,544,294,384.92
  5. Step 5: Solve for x
    x = 7,544,294,384.92/99,992.11
  6. Step 6: Final answer
    x = 75,448.90

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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.