Home / 77,993.28-107,635.64-43,989.36

Finding the Fourth Proportional to 77,993.28, 107,635.64 and 43,989.36

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Solution

The fourth proportional to 77,993.28, 107,635.64 and 43,989.36 is: 60,708.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,993.28 : 107,635.64 = 43,989.36 : x
  2. Step 2: Convert to fraction form
    77,993.28/107,635.64 = 43,989.36/x
  3. Step 3: Cross multiply
    77,993.28x = 107,635.64 × 43,989.36
  4. Step 4: Simplify right side
    77,993.28x = 4,734,822,916.79
  5. Step 5: Solve for x
    x = 4,734,822,916.79/77,993.28
  6. Step 6: Final answer
    x = 60,708.09

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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.