Home / 51,108.37-76,640.65-17,818.58

Finding the Fourth Proportional to 51,108.37, 76,640.65 and 17,818.58

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Solution

The fourth proportional to 51,108.37, 76,640.65 and 17,818.58 is: 26,720.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,108.37 : 76,640.65 = 17,818.58 : x
  2. Step 2: Convert to fraction form
    51,108.37/76,640.65 = 17,818.58/x
  3. Step 3: Cross multiply
    51,108.37x = 76,640.65 × 17,818.58
  4. Step 4: Simplify right side
    51,108.37x = 1,365,627,700.33
  5. Step 5: Solve for x
    x = 1,365,627,700.33/51,108.37
  6. Step 6: Final answer
    x = 26,720.24

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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.