Home / 97,679.22-134,754.69-57,321.78

Finding the Fourth Proportional to 97,679.22, 134,754.69 and 57,321.78

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Solution

The fourth proportional to 97,679.22, 134,754.69 and 57,321.78 is: 79,079.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,679.22 : 134,754.69 = 57,321.78 : x
  2. Step 2: Convert to fraction form
    97,679.22/134,754.69 = 57,321.78/x
  3. Step 3: Cross multiply
    97,679.22x = 134,754.69 × 57,321.78
  4. Step 4: Simplify right side
    97,679.22x = 7,724,378,694.15
  5. Step 5: Solve for x
    x = 7,724,378,694.15/97,679.22
  6. Step 6: Final answer
    x = 79,079.04

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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.