Home / 97,817.12-134,986.88-55,375.28

Finding the Fourth Proportional to 97,817.12, 134,986.88 and 55,375.28

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Solution

The fourth proportional to 97,817.12, 134,986.88 and 55,375.28 is: 76,417.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,817.12 : 134,986.88 = 55,375.28 : x
  2. Step 2: Convert to fraction form
    97,817.12/134,986.88 = 55,375.28/x
  3. Step 3: Cross multiply
    97,817.12x = 134,986.88 × 55,375.28
  4. Step 4: Simplify right side
    97,817.12x = 7,474,936,276.33
  5. Step 5: Solve for x
    x = 7,474,936,276.33/97,817.12
  6. Step 6: Final answer
    x = 76,417.46

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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.