Home / 54,409.86-75,078.36-30,536.28

Finding the Fourth Proportional to 54,409.86, 75,078.36 and 30,536.28

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Solution

The fourth proportional to 54,409.86, 75,078.36 and 30,536.28 is: 42,136.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,409.86 : 75,078.36 = 30,536.28 : x
  2. Step 2: Convert to fraction form
    54,409.86/75,078.36 = 30,536.28/x
  3. Step 3: Cross multiply
    54,409.86x = 75,078.36 × 30,536.28
  4. Step 4: Simplify right side
    54,409.86x = 2,292,613,822.90
  5. Step 5: Solve for x
    x = 2,292,613,822.90/54,409.86
  6. Step 6: Final answer
    x = 42,136.00

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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.