Home / 47,097.79-65,012-31,187.36

Finding the Fourth Proportional to 47,097.79, 65,012 and 31,187.36

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Solution

The fourth proportional to 47,097.79, 65,012 and 31,187.36 is: 43,049.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,097.79 : 65,012 = 31,187.36 : x
  2. Step 2: Convert to fraction form
    47,097.79/65,012 = 31,187.36/x
  3. Step 3: Cross multiply
    47,097.79x = 65,012 × 31,187.36
  4. Step 4: Simplify right side
    47,097.79x = 2,027,552,648.32
  5. Step 5: Solve for x
    x = 2,027,552,648.32/47,097.79
  6. Step 6: Final answer
    x = 43,049.85

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.