Home / 45,679.16-68,523.30-12,399.76

Finding the Fourth Proportional to 45,679.16, 68,523.30 and 12,399.76

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Solution

The fourth proportional to 45,679.16, 68,523.30 and 12,399.76 is: 18,600.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,679.16 : 68,523.30 = 12,399.76 : x
  2. Step 2: Convert to fraction form
    45,679.16/68,523.30 = 12,399.76/x
  3. Step 3: Cross multiply
    45,679.16x = 68,523.30 × 12,399.76
  4. Step 4: Simplify right side
    45,679.16x = 849,672,474.41
  5. Step 5: Solve for x
    x = 849,672,474.41/45,679.16
  6. Step 6: Final answer
    x = 18,600.88

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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.