Home / 57,833.08-79,786.02-38,976.28

Finding the Fourth Proportional to 57,833.08, 79,786.02 and 38,976.28

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Solution

The fourth proportional to 57,833.08, 79,786.02 and 38,976.28 is: 53,771.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,833.08 : 79,786.02 = 38,976.28 : x
  2. Step 2: Convert to fraction form
    57,833.08/79,786.02 = 38,976.28/x
  3. Step 3: Cross multiply
    57,833.08x = 79,786.02 × 38,976.28
  4. Step 4: Simplify right side
    57,833.08x = 3,109,762,255.61
  5. Step 5: Solve for x
    x = 3,109,762,255.61/57,833.08
  6. Step 6: Final answer
    x = 53,771.34

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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.