Home / 77,731.25-107,242.25-43,734.33

Finding the Fourth Proportional to 77,731.25, 107,242.25 and 43,734.33

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Solution

The fourth proportional to 77,731.25, 107,242.25 and 43,734.33 is: 60,338.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,731.25 : 107,242.25 = 43,734.33 : x
  2. Step 2: Convert to fraction form
    77,731.25/107,242.25 = 43,734.33/x
  3. Step 3: Cross multiply
    77,731.25x = 107,242.25 × 43,734.33
  4. Step 4: Simplify right side
    77,731.25x = 4,690,167,732.77
  5. Step 5: Solve for x
    x = 4,690,167,732.77/77,731.25
  6. Step 6: Final answer
    x = 60,338.26

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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.