Home / 79,079.52-109,132.36-43,268.74

Finding the Fourth Proportional to 79,079.52, 109,132.36 and 43,268.74

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Solution

The fourth proportional to 79,079.52, 109,132.36 and 43,268.74 is: 59,712.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,079.52 : 109,132.36 = 43,268.74 : x
  2. Step 2: Convert to fraction form
    79,079.52/109,132.36 = 43,268.74/x
  3. Step 3: Cross multiply
    79,079.52x = 109,132.36 × 43,268.74
  4. Step 4: Simplify right side
    79,079.52x = 4,722,019,710.43
  5. Step 5: Solve for x
    x = 4,722,019,710.43/79,079.52
  6. Step 6: Final answer
    x = 59,712.30

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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.