Home / 54,313.72-81,365.50-30,549.07

Finding the Fourth Proportional to 54,313.72, 81,365.50 and 30,549.07

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Solution

The fourth proportional to 54,313.72, 81,365.50 and 30,549.07 is: 45,764.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,313.72 : 81,365.50 = 30,549.07 : x
  2. Step 2: Convert to fraction form
    54,313.72/81,365.50 = 30,549.07/x
  3. Step 3: Cross multiply
    54,313.72x = 81,365.50 × 30,549.07
  4. Step 4: Simplify right side
    54,313.72x = 2,485,639,795.51
  5. Step 5: Solve for x
    x = 2,485,639,795.51/54,313.72
  6. Step 6: Final answer
    x = 45,764.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.