Home / 45,338.98-68,003.07-12,061.48

Finding the Fourth Proportional to 45,338.98, 68,003.07 and 12,061.48

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Solution

The fourth proportional to 45,338.98, 68,003.07 and 12,061.48 is: 18,090.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,338.98 : 68,003.07 = 12,061.48 : x
  2. Step 2: Convert to fraction form
    45,338.98/68,003.07 = 12,061.48/x
  3. Step 3: Cross multiply
    45,338.98x = 68,003.07 × 12,061.48
  4. Step 4: Simplify right side
    45,338.98x = 820,217,668.74
  5. Step 5: Solve for x
    x = 820,217,668.74/45,338.98
  6. Step 6: Final answer
    x = 18,090.78

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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.