Home / 51,149.34-76,640.58-31,386.15

Finding the Fourth Proportional to 51,149.34, 76,640.58 and 31,386.15

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Solution

The fourth proportional to 51,149.34, 76,640.58 and 31,386.15 is: 47,028.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,149.34 : 76,640.58 = 31,386.15 : x
  2. Step 2: Convert to fraction form
    51,149.34/76,640.58 = 31,386.15/x
  3. Step 3: Cross multiply
    51,149.34x = 76,640.58 × 31,386.15
  4. Step 4: Simplify right side
    51,149.34x = 2,405,452,739.97
  5. Step 5: Solve for x
    x = 2,405,452,739.97/51,149.34
  6. Step 6: Final answer
    x = 47,028.03

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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.