Home / 83,619.42-125,396.44-30,298.74

Finding the Fourth Proportional to 83,619.42, 125,396.44 and 30,298.74

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Solution

The fourth proportional to 83,619.42, 125,396.44 and 30,298.74 is: 45,436.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,619.42 : 125,396.44 = 30,298.74 : x
  2. Step 2: Convert to fraction form
    83,619.42/125,396.44 = 30,298.74/x
  3. Step 3: Cross multiply
    83,619.42x = 125,396.44 × 30,298.74
  4. Step 4: Simplify right side
    83,619.42x = 3,799,354,132.49
  5. Step 5: Solve for x
    x = 3,799,354,132.49/83,619.42
  6. Step 6: Final answer
    x = 45,436.27

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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.