Home / 57,119.52-78,772.26-39,182.88

Finding the Fourth Proportional to 57,119.52, 78,772.26 and 39,182.88

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Solution

The fourth proportional to 57,119.52, 78,772.26 and 39,182.88 is: 54,036.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,119.52 : 78,772.26 = 39,182.88 : x
  2. Step 2: Convert to fraction form
    57,119.52/78,772.26 = 39,182.88/x
  3. Step 3: Cross multiply
    57,119.52x = 78,772.26 × 39,182.88
  4. Step 4: Simplify right side
    57,119.52x = 3,086,524,010.91
  5. Step 5: Solve for x
    x = 3,086,524,010.91/57,119.52
  6. Step 6: Final answer
    x = 54,036.24

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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.