Home / 97,431.75-134,486.37-57,161.79

Finding the Fourth Proportional to 97,431.75, 134,486.37 and 57,161.79

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Solution

The fourth proportional to 97,431.75, 134,486.37 and 57,161.79 is: 78,901.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,431.75 : 134,486.37 = 57,161.79 : x
  2. Step 2: Convert to fraction form
    97,431.75/134,486.37 = 57,161.79/x
  3. Step 3: Cross multiply
    97,431.75x = 134,486.37 × 57,161.79
  4. Step 4: Simplify right side
    97,431.75x = 7,687,481,639.80
  5. Step 5: Solve for x
    x = 7,687,481,639.80/97,431.75
  6. Step 6: Final answer
    x = 78,901.20

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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.