Home / 97,815.97-134,986.62-57,531.43

Finding the Fourth Proportional to 97,815.97, 134,986.62 and 57,531.43

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Solution

The fourth proportional to 97,815.97, 134,986.62 and 57,531.43 is: 79,393.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,815.97 : 134,986.62 = 57,531.43 : x
  2. Step 2: Convert to fraction form
    97,815.97/134,986.62 = 57,531.43/x
  3. Step 3: Cross multiply
    97,815.97x = 134,986.62 × 57,531.43
  4. Step 4: Simplify right side
    97,815.97x = 7,765,973,279.47
  5. Step 5: Solve for x
    x = 7,765,973,279.47/97,815.97
  6. Step 6: Final answer
    x = 79,393.72

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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.