Home / 77,930.10-107,612.55-49,302.27

Finding the Fourth Proportional to 77,930.10, 107,612.55 and 49,302.27

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Solution

The fourth proportional to 77,930.10, 107,612.55 and 49,302.27 is: 68,080.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,930.10 : 107,612.55 = 49,302.27 : x
  2. Step 2: Convert to fraction form
    77,930.10/107,612.55 = 49,302.27/x
  3. Step 3: Cross multiply
    77,930.10x = 107,612.55 × 49,302.27
  4. Step 4: Simplify right side
    77,930.10x = 5,305,542,995.49
  5. Step 5: Solve for x
    x = 5,305,542,995.49/77,930.10
  6. Step 6: Final answer
    x = 68,080.79

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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.