Home / 76,401.28-105,399.04-49,550.56

Finding the Fourth Proportional to 76,401.28, 105,399.04 and 49,550.56

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Solution

The fourth proportional to 76,401.28, 105,399.04 and 49,550.56 is: 68,357.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,401.28 : 105,399.04 = 49,550.56 : x
  2. Step 2: Convert to fraction form
    76,401.28/105,399.04 = 49,550.56/x
  3. Step 3: Cross multiply
    76,401.28x = 105,399.04 × 49,550.56
  4. Step 4: Simplify right side
    76,401.28x = 5,222,581,455.46
  5. Step 5: Solve for x
    x = 5,222,581,455.46/76,401.28
  6. Step 6: Final answer
    x = 68,357.25

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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.