Home / 75,378.66-104,014.85-43,557.81

Finding the Fourth Proportional to 75,378.66, 104,014.85 and 43,557.81

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Solution

The fourth proportional to 75,378.66, 104,014.85 and 43,557.81 is: 60,105.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,378.66 : 104,014.85 = 43,557.81 : x
  2. Step 2: Convert to fraction form
    75,378.66/104,014.85 = 43,557.81/x
  3. Step 3: Cross multiply
    75,378.66x = 104,014.85 × 43,557.81
  4. Step 4: Simplify right side
    75,378.66x = 4,530,658,855.69
  5. Step 5: Solve for x
    x = 4,530,658,855.69/75,378.66
  6. Step 6: Final answer
    x = 60,105.32

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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.