Home / 57,271.48-79,022.10-55,383.64

Finding the Fourth Proportional to 57,271.48, 79,022.10 and 55,383.64

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Solution

The fourth proportional to 57,271.48, 79,022.10 and 55,383.64 is: 76,417.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,271.48 : 79,022.10 = 55,383.64 : x
  2. Step 2: Convert to fraction form
    57,271.48/79,022.10 = 55,383.64/x
  3. Step 3: Cross multiply
    57,271.48x = 79,022.10 × 55,383.64
  4. Step 4: Simplify right side
    57,271.48x = 4,376,531,538.44
  5. Step 5: Solve for x
    x = 4,376,531,538.44/57,271.48
  6. Step 6: Final answer
    x = 76,417.29

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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.