Home / 79,747.15-110,031.18-51,418.75

Finding the Fourth Proportional to 79,747.15, 110,031.18 and 51,418.75

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Solution

The fourth proportional to 79,747.15, 110,031.18 and 51,418.75 is: 70,945.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,747.15 : 110,031.18 = 51,418.75 : x
  2. Step 2: Convert to fraction form
    79,747.15/110,031.18 = 51,418.75/x
  3. Step 3: Cross multiply
    79,747.15x = 110,031.18 × 51,418.75
  4. Step 4: Simplify right side
    79,747.15x = 5,657,665,736.63
  5. Step 5: Solve for x
    x = 5,657,665,736.63/79,747.15
  6. Step 6: Final answer
    x = 70,945.05

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.