Home / 51,408.18-77,195.97-31,811.58

Finding the Fourth Proportional to 51,408.18, 77,195.97 and 31,811.58

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Solution

The fourth proportional to 51,408.18, 77,195.97 and 31,811.58 is: 47,769.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,408.18 : 77,195.97 = 31,811.58 : x
  2. Step 2: Convert to fraction form
    51,408.18/77,195.97 = 31,811.58/x
  3. Step 3: Cross multiply
    51,408.18x = 77,195.97 × 31,811.58
  4. Step 4: Simplify right side
    51,408.18x = 2,455,725,775.33
  5. Step 5: Solve for x
    x = 2,455,725,775.33/51,408.18
  6. Step 6: Final answer
    x = 47,769.16

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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.