Home / 45,107.04-67,661.32-13,942

Finding the Fourth Proportional to 45,107.04, 67,661.32 and 13,942

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Solution

The fourth proportional to 45,107.04, 67,661.32 and 13,942 is: 20,913.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,107.04 : 67,661.32 = 13,942 : x
  2. Step 2: Convert to fraction form
    45,107.04/67,661.32 = 13,942/x
  3. Step 3: Cross multiply
    45,107.04x = 67,661.32 × 13,942
  4. Step 4: Simplify right side
    45,107.04x = 943,334,123.44
  5. Step 5: Solve for x
    x = 943,334,123.44/45,107.04
  6. Step 6: Final answer
    x = 20,913.23

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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.