Home / 77,916.72-107,454.48-51,049.44

Finding the Fourth Proportional to 77,916.72, 107,454.48 and 51,049.44

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Solution

The fourth proportional to 77,916.72, 107,454.48 and 51,049.44 is: 70,401.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,916.72 : 107,454.48 = 51,049.44 : x
  2. Step 2: Convert to fraction form
    77,916.72/107,454.48 = 51,049.44/x
  3. Step 3: Cross multiply
    77,916.72x = 107,454.48 × 51,049.44
  4. Step 4: Simplify right side
    77,916.72x = 5,485,491,029.49
  5. Step 5: Solve for x
    x = 5,485,491,029.49/77,916.72
  6. Step 6: Final answer
    x = 70,401.98

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1.5x scale

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.