Home / 45,758.33-68,635.46-12,478.40

Finding the Fourth Proportional to 45,758.33, 68,635.46 and 12,478.40

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Solution

The fourth proportional to 45,758.33, 68,635.46 and 12,478.40 is: 18,717.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,758.33 : 68,635.46 = 12,478.40 : x
  2. Step 2: Convert to fraction form
    45,758.33/68,635.46 = 12,478.40/x
  3. Step 3: Cross multiply
    45,758.33x = 68,635.46 × 12,478.40
  4. Step 4: Simplify right side
    45,758.33x = 856,460,318.49
  5. Step 5: Solve for x
    x = 856,460,318.49/45,758.33
  6. Step 6: Final answer
    x = 18,717.04

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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.