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Finding the Fourth Proportional to 30,168, 45,208.32 and 26,461.44

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Solution

The fourth proportional to 30,168, 45,208.32 and 26,461.44 is: 39,653.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,168 : 45,208.32 = 26,461.44 : x
  2. Step 2: Convert to fraction form
    30,168/45,208.32 = 26,461.44/x
  3. Step 3: Cross multiply
    30,168x = 45,208.32 × 26,461.44
  4. Step 4: Simplify right side
    30,168x = 1,196,277,247.18
  5. Step 5: Solve for x
    x = 1,196,277,247.18/30,168
  6. Step 6: Final answer
    x = 39,653.85

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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.