Home / 83,789.57-125,644.77-30,444.36

Finding the Fourth Proportional to 83,789.57, 125,644.77 and 30,444.36

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Solution

The fourth proportional to 83,789.57, 125,644.77 and 30,444.36 is: 45,652.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,789.57 : 125,644.77 = 30,444.36 : x
  2. Step 2: Convert to fraction form
    83,789.57/125,644.77 = 30,444.36/x
  3. Step 3: Cross multiply
    83,789.57x = 125,644.77 × 30,444.36
  4. Step 4: Simplify right side
    83,789.57x = 3,825,175,198.96
  5. Step 5: Solve for x
    x = 3,825,175,198.96/83,789.57
  6. Step 6: Final answer
    x = 45,652.16

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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.