Home / 53,513.36-73,845.20-31,418.72

Finding the Fourth Proportional to 53,513.36, 73,845.20 and 31,418.72

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Solution

The fourth proportional to 53,513.36, 73,845.20 and 31,418.72 is: 43,355.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,513.36 : 73,845.20 = 31,418.72 : x
  2. Step 2: Convert to fraction form
    53,513.36/73,845.20 = 31,418.72/x
  3. Step 3: Cross multiply
    53,513.36x = 73,845.20 × 31,418.72
  4. Step 4: Simplify right side
    53,513.36x = 2,320,121,662.14
  5. Step 5: Solve for x
    x = 2,320,121,662.14/53,513.36
  6. Step 6: Final answer
    x = 43,355.93

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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.