Home / 45,130.38-67,706.37-13,965.63

Finding the Fourth Proportional to 45,130.38, 67,706.37 and 13,965.63

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Solution

The fourth proportional to 45,130.38, 67,706.37 and 13,965.63 is: 20,951.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,130.38 : 67,706.37 = 13,965.63 : x
  2. Step 2: Convert to fraction form
    45,130.38/67,706.37 = 13,965.63/x
  3. Step 3: Cross multiply
    45,130.38x = 67,706.37 × 13,965.63
  4. Step 4: Simplify right side
    45,130.38x = 945,562,112.06
  5. Step 5: Solve for x
    x = 945,562,112.06/45,130.38
  6. Step 6: Final answer
    x = 20,951.79

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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.