Home / 63,110.14-87,120.60-40,149.40

Finding the Fourth Proportional to 63,110.14, 87,120.60 and 40,149.40

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Solution

The fourth proportional to 63,110.14, 87,120.60 and 40,149.40 is: 55,424.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,110.14 : 87,120.60 = 40,149.40 : x
  2. Step 2: Convert to fraction form
    63,110.14/87,120.60 = 40,149.40/x
  3. Step 3: Cross multiply
    63,110.14x = 87,120.60 × 40,149.40
  4. Step 4: Simplify right side
    63,110.14x = 3,497,839,817.64
  5. Step 5: Solve for x
    x = 3,497,839,817.64/63,110.14
  6. Step 6: Final answer
    x = 55,424.37

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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.