Home / 45,109.04-67,610.49-18,438.57

Finding the Fourth Proportional to 45,109.04, 67,610.49 and 18,438.57

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Solution

The fourth proportional to 45,109.04, 67,610.49 and 18,438.57 is: 27,636.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,109.04 : 67,610.49 = 18,438.57 : x
  2. Step 2: Convert to fraction form
    45,109.04/67,610.49 = 18,438.57/x
  3. Step 3: Cross multiply
    45,109.04x = 67,610.49 × 18,438.57
  4. Step 4: Simplify right side
    45,109.04x = 1,246,640,752.60
  5. Step 5: Solve for x
    x = 1,246,640,752.60/45,109.04
  6. Step 6: Final answer
    x = 27,636.17

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1.5x scale

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.