Home / 83,723.04-125,584.86-20,543.58

Finding the Fourth Proportional to 83,723.04, 125,584.86 and 20,543.58

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Solution

The fourth proportional to 83,723.04, 125,584.86 and 20,543.58 is: 30,815.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,723.04 : 125,584.86 = 20,543.58 : x
  2. Step 2: Convert to fraction form
    83,723.04/125,584.86 = 20,543.58/x
  3. Step 3: Cross multiply
    83,723.04x = 125,584.86 × 20,543.58
  4. Step 4: Simplify right side
    83,723.04x = 2,579,962,618.20
  5. Step 5: Solve for x
    x = 2,579,962,618.20/83,723.04
  6. Step 6: Final answer
    x = 30,815.44

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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.