Home / 53,418.24-73,635.36-39,969.12

Finding the Fourth Proportional to 53,418.24, 73,635.36 and 39,969.12

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Solution

The fourth proportional to 53,418.24, 73,635.36 and 39,969.12 is: 55,096.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,418.24 : 73,635.36 = 39,969.12 : x
  2. Step 2: Convert to fraction form
    53,418.24/73,635.36 = 39,969.12/x
  3. Step 3: Cross multiply
    53,418.24x = 73,635.36 × 39,969.12
  4. Step 4: Simplify right side
    53,418.24x = 2,943,140,540.08
  5. Step 5: Solve for x
    x = 2,943,140,540.08/53,418.24
  6. Step 6: Final answer
    x = 55,096.17

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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.