Home / 81,028.01-121,458.93-31,094.70

Finding the Fourth Proportional to 81,028.01, 121,458.93 and 31,094.70

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Solution

The fourth proportional to 81,028.01, 121,458.93 and 31,094.70 is: 46,610.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,028.01 : 121,458.93 = 31,094.70 : x
  2. Step 2: Convert to fraction form
    81,028.01/121,458.93 = 31,094.70/x
  3. Step 3: Cross multiply
    81,028.01x = 121,458.93 × 31,094.70
  4. Step 4: Simplify right side
    81,028.01x = 3,776,728,990.67
  5. Step 5: Solve for x
    x = 3,776,728,990.67/81,028.01
  6. Step 6: Final answer
    x = 46,610.17

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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.