Home / 57,977.10-86,965.65-18,538.20

Finding the Fourth Proportional to 57,977.10, 86,965.65 and 18,538.20

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Solution

The fourth proportional to 57,977.10, 86,965.65 and 18,538.20 is: 27,807.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,977.10 : 86,965.65 = 18,538.20 : x
  2. Step 2: Convert to fraction form
    57,977.10/86,965.65 = 18,538.20/x
  3. Step 3: Cross multiply
    57,977.10x = 86,965.65 × 18,538.20
  4. Step 4: Simplify right side
    57,977.10x = 1,612,186,612.83
  5. Step 5: Solve for x
    x = 1,612,186,612.83/57,977.10
  6. Step 6: Final answer
    x = 27,807.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.