Home / 54,026.10-81,087.15-31,811.70

Finding the Fourth Proportional to 54,026.10, 81,087.15 and 31,811.70

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Solution

The fourth proportional to 54,026.10, 81,087.15 and 31,811.70 is: 47,745.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,026.10 : 81,087.15 = 31,811.70 : x
  2. Step 2: Convert to fraction form
    54,026.10/81,087.15 = 31,811.70/x
  3. Step 3: Cross multiply
    54,026.10x = 81,087.15 × 31,811.70
  4. Step 4: Simplify right side
    54,026.10x = 2,579,520,089.66
  5. Step 5: Solve for x
    x = 2,579,520,089.66/54,026.10
  6. Step 6: Final answer
    x = 47,745.81

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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.