Home / 97,876.80-135,072.96-55,441.44

Finding the Fourth Proportional to 97,876.80, 135,072.96 and 55,441.44

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Solution

The fourth proportional to 97,876.80, 135,072.96 and 55,441.44 is: 76,510.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,876.80 : 135,072.96 = 55,441.44 : x
  2. Step 2: Convert to fraction form
    97,876.80/135,072.96 = 55,441.44/x
  3. Step 3: Cross multiply
    97,876.80x = 135,072.96 × 55,441.44
  4. Step 4: Simplify right side
    97,876.80x = 7,488,639,407.46
  5. Step 5: Solve for x
    x = 7,488,639,407.46/97,876.80
  6. Step 6: Final answer
    x = 76,510.87

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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.