Home / 83,451.28-115,173.48-47,633.08

Finding the Fourth Proportional to 83,451.28, 115,173.48 and 47,633.08

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Solution

The fourth proportional to 83,451.28, 115,173.48 and 47,633.08 is: 65,739.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,451.28 : 115,173.48 = 47,633.08 : x
  2. Step 2: Convert to fraction form
    83,451.28/115,173.48 = 47,633.08/x
  3. Step 3: Cross multiply
    83,451.28x = 115,173.48 × 47,633.08
  4. Step 4: Simplify right side
    83,451.28x = 5,486,067,586.72
  5. Step 5: Solve for x
    x = 5,486,067,586.72/83,451.28
  6. Step 6: Final answer
    x = 65,739.77

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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.