Home / 42,015.75-63,063.19-27,985.64

Finding the Fourth Proportional to 42,015.75, 63,063.19 and 27,985.64

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Solution

The fourth proportional to 42,015.75, 63,063.19 and 27,985.64 is: 42,004.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,015.75 : 63,063.19 = 27,985.64 : x
  2. Step 2: Convert to fraction form
    42,015.75/63,063.19 = 27,985.64/x
  3. Step 3: Cross multiply
    42,015.75x = 63,063.19 × 27,985.64
  4. Step 4: Simplify right side
    42,015.75x = 1,764,863,732.59
  5. Step 5: Solve for x
    x = 1,764,863,732.59/42,015.75
  6. Step 6: Final answer
    x = 42,004.81

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.