Home / 57,304.36-79,116.90-39,393.64

Finding the Fourth Proportional to 57,304.36, 79,116.90 and 39,393.64

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Solution

The fourth proportional to 57,304.36, 79,116.90 and 39,393.64 is: 54,388.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,304.36 : 79,116.90 = 39,393.64 : x
  2. Step 2: Convert to fraction form
    57,304.36/79,116.90 = 39,393.64/x
  3. Step 3: Cross multiply
    57,304.36x = 79,116.90 × 39,393.64
  4. Step 4: Simplify right side
    57,304.36x = 3,116,702,676.52
  5. Step 5: Solve for x
    x = 3,116,702,676.52/57,304.36
  6. Step 6: Final answer
    x = 54,388.58

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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.