Home / 45,561.77-68,337.90-12,279.80

Finding the Fourth Proportional to 45,561.77, 68,337.90 and 12,279.80

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Solution

The fourth proportional to 45,561.77, 68,337.90 and 12,279.80 is: 18,418.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,561.77 : 68,337.90 = 12,279.80 : x
  2. Step 2: Convert to fraction form
    45,561.77/68,337.90 = 12,279.80/x
  3. Step 3: Cross multiply
    45,561.77x = 68,337.90 × 12,279.80
  4. Step 4: Simplify right side
    45,561.77x = 839,175,949.80
  5. Step 5: Solve for x
    x = 839,175,949.80/45,561.77
  6. Step 6: Final answer
    x = 18,418.42

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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.