Home / 47,451.80-71,177.72-12,391.16

Finding the Fourth Proportional to 47,451.80, 71,177.72 and 12,391.16

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Solution

The fourth proportional to 47,451.80, 71,177.72 and 12,391.16 is: 18,586.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,451.80 : 71,177.72 = 12,391.16 : x
  2. Step 2: Convert to fraction form
    47,451.80/71,177.72 = 12,391.16/x
  3. Step 3: Cross multiply
    47,451.80x = 71,177.72 × 12,391.16
  4. Step 4: Simplify right side
    47,451.80x = 881,974,099.11
  5. Step 5: Solve for x
    x = 881,974,099.11/47,451.80
  6. Step 6: Final answer
    x = 18,586.74

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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.