Home / 47,872.37-71,807.46-12,812.02

Finding the Fourth Proportional to 47,872.37, 71,807.46 and 12,812.02

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Solution

The fourth proportional to 47,872.37, 71,807.46 and 12,812.02 is: 19,217.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,872.37 : 71,807.46 = 12,812.02 : x
  2. Step 2: Convert to fraction form
    47,872.37/71,807.46 = 12,812.02/x
  3. Step 3: Cross multiply
    47,872.37x = 71,807.46 × 12,812.02
  4. Step 4: Simplify right side
    47,872.37x = 919,998,862.09
  5. Step 5: Solve for x
    x = 919,998,862.09/47,872.37
  6. Step 6: Final answer
    x = 19,217.74

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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.