Home / 76,202.28-105,134.70-49,365.36

Finding the Fourth Proportional to 76,202.28, 105,134.70 and 49,365.36

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Solution

The fourth proportional to 76,202.28, 105,134.70 and 49,365.36 is: 68,108.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,202.28 : 105,134.70 = 49,365.36 : x
  2. Step 2: Convert to fraction form
    76,202.28/105,134.70 = 49,365.36/x
  3. Step 3: Cross multiply
    76,202.28x = 105,134.70 × 49,365.36
  4. Step 4: Simplify right side
    76,202.28x = 5,190,012,313.99
  5. Step 5: Solve for x
    x = 5,190,012,313.99/76,202.28
  6. Step 6: Final answer
    x = 68,108.36

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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.