Home / 97,983.47-135,218.62-54,972.47

Finding the Fourth Proportional to 97,983.47, 135,218.62 and 54,972.47

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Solution

The fourth proportional to 97,983.47, 135,218.62 and 54,972.47 is: 75,862.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,983.47 : 135,218.62 = 54,972.47 : x
  2. Step 2: Convert to fraction form
    97,983.47/135,218.62 = 54,972.47/x
  3. Step 3: Cross multiply
    97,983.47x = 135,218.62 × 54,972.47
  4. Step 4: Simplify right side
    97,983.47x = 7,433,300,992.73
  5. Step 5: Solve for x
    x = 7,433,300,992.73/97,983.47
  6. Step 6: Final answer
    x = 75,862.81

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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.