Home / 47,680.12-71,520.66-14,400.46

Finding the Fourth Proportional to 47,680.12, 71,520.66 and 14,400.46

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Solution

The fourth proportional to 47,680.12, 71,520.66 and 14,400.46 is: 21,600.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,680.12 : 71,520.66 = 14,400.46 : x
  2. Step 2: Convert to fraction form
    47,680.12/71,520.66 = 14,400.46/x
  3. Step 3: Cross multiply
    47,680.12x = 71,520.66 × 14,400.46
  4. Step 4: Simplify right side
    47,680.12x = 1,029,930,403.50
  5. Step 5: Solve for x
    x = 1,029,930,403.50/47,680.12
  6. Step 6: Final answer
    x = 21,600.83

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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.