Home / 81,027.92-121,458.48-31,094.72

Finding the Fourth Proportional to 81,027.92, 121,458.48 and 31,094.72

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Solution

The fourth proportional to 81,027.92, 121,458.48 and 31,094.72 is: 46,610.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,027.92 : 121,458.48 = 31,094.72 : x
  2. Step 2: Convert to fraction form
    81,027.92/121,458.48 = 31,094.72/x
  3. Step 3: Cross multiply
    81,027.92x = 121,458.48 × 31,094.72
  4. Step 4: Simplify right side
    81,027.92x = 3,776,717,427.23
  5. Step 5: Solve for x
    x = 3,776,717,427.23/81,027.92
  6. Step 6: Final answer
    x = 46,610.07

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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.