Home / 45,390.97-68,086.46-12,111.16

Finding the Fourth Proportional to 45,390.97, 68,086.46 and 12,111.16

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Solution

The fourth proportional to 45,390.97, 68,086.46 and 12,111.16 is: 18,166.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,390.97 : 68,086.46 = 12,111.16 : x
  2. Step 2: Convert to fraction form
    45,390.97/68,086.46 = 12,111.16/x
  3. Step 3: Cross multiply
    45,390.97x = 68,086.46 × 12,111.16
  4. Step 4: Simplify right side
    45,390.97x = 824,605,885.84
  5. Step 5: Solve for x
    x = 824,605,885.84/45,390.97
  6. Step 6: Final answer
    x = 18,166.74

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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.