Home / 83,514.60-125,267.58-21,185.64

Finding the Fourth Proportional to 83,514.60, 125,267.58 and 21,185.64

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Solution

The fourth proportional to 83,514.60, 125,267.58 and 21,185.64 is: 31,777.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,514.60 : 125,267.58 = 21,185.64 : x
  2. Step 2: Convert to fraction form
    83,514.60/125,267.58 = 21,185.64/x
  3. Step 3: Cross multiply
    83,514.60x = 125,267.58 × 21,185.64
  4. Step 4: Simplify right side
    83,514.60x = 2,653,873,853.55
  5. Step 5: Solve for x
    x = 2,653,873,853.55/83,514.60
  6. Step 6: Final answer
    x = 31,777.36

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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.