Home / 81,029.01-121,460.43-31,095.70

Finding the Fourth Proportional to 81,029.01, 121,460.43 and 31,095.70

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Solution

The fourth proportional to 81,029.01, 121,460.43 and 31,095.70 is: 46,611.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,029.01 : 121,460.43 = 31,095.70 : x
  2. Step 2: Convert to fraction form
    81,029.01/121,460.43 = 31,095.70/x
  3. Step 3: Cross multiply
    81,029.01x = 121,460.43 × 31,095.70
  4. Step 4: Simplify right side
    81,029.01x = 3,776,897,093.15
  5. Step 5: Solve for x
    x = 3,776,897,093.15/81,029.01
  6. Step 6: Final answer
    x = 46,611.67

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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.