Home / 45,391.44-68,087.16-12,111.63

Finding the Fourth Proportional to 45,391.44, 68,087.16 and 12,111.63

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Solution

The fourth proportional to 45,391.44, 68,087.16 and 12,111.63 is: 18,167.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,391.44 : 68,087.16 = 12,111.63 : x
  2. Step 2: Convert to fraction form
    45,391.44/68,087.16 = 12,111.63/x
  3. Step 3: Cross multiply
    45,391.44x = 68,087.16 × 12,111.63
  4. Step 4: Simplify right side
    45,391.44x = 824,646,279.76
  5. Step 5: Solve for x
    x = 824,646,279.76/45,391.44
  6. Step 6: Final answer
    x = 18,167.44

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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.