Home / 47,187.09-70,747.83-20,877.48

Finding the Fourth Proportional to 47,187.09, 70,747.83 and 20,877.48

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Solution

The fourth proportional to 47,187.09, 70,747.83 and 20,877.48 is: 31,301.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,187.09 : 70,747.83 = 20,877.48 : x
  2. Step 2: Convert to fraction form
    47,187.09/70,747.83 = 20,877.48/x
  3. Step 3: Cross multiply
    47,187.09x = 70,747.83 × 20,877.48
  4. Step 4: Simplify right side
    47,187.09x = 1,477,036,405.87
  5. Step 5: Solve for x
    x = 1,477,036,405.87/47,187.09
  6. Step 6: Final answer
    x = 31,301.71

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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.