Home / 42,651.72-63,975.26-13,069.64

Finding the Fourth Proportional to 42,651.72, 63,975.26 and 13,069.64

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Solution

The fourth proportional to 42,651.72, 63,975.26 and 13,069.64 is: 19,603.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,651.72 : 63,975.26 = 13,069.64 : x
  2. Step 2: Convert to fraction form
    42,651.72/63,975.26 = 13,069.64/x
  3. Step 3: Cross multiply
    42,651.72x = 63,975.26 × 13,069.64
  4. Step 4: Simplify right side
    42,651.72x = 836,133,297.23
  5. Step 5: Solve for x
    x = 836,133,297.23/42,651.72
  6. Step 6: Final answer
    x = 19,603.74

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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.