Home / 83,611.43-125,384.47-30,290.75

Finding the Fourth Proportional to 83,611.43, 125,384.47 and 30,290.75

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Solution

The fourth proportional to 83,611.43, 125,384.47 and 30,290.75 is: 45,424.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,611.43 : 125,384.47 = 30,290.75 : x
  2. Step 2: Convert to fraction form
    83,611.43/125,384.47 = 30,290.75/x
  3. Step 3: Cross multiply
    83,611.43x = 125,384.47 × 30,290.75
  4. Step 4: Simplify right side
    83,611.43x = 3,797,988,856.28
  5. Step 5: Solve for x
    x = 3,797,988,856.28/83,611.43
  6. Step 6: Final answer
    x = 45,424.28

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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.