Home / 83,611.34-125,416.64-30,290.84

Finding the Fourth Proportional to 83,611.34, 125,416.64 and 30,290.84

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Solution

The fourth proportional to 83,611.34, 125,416.64 and 30,290.84 is: 45,436.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,611.34 : 125,416.64 = 30,290.84 : x
  2. Step 2: Convert to fraction form
    83,611.34/125,416.64 = 30,290.84/x
  3. Step 3: Cross multiply
    83,611.34x = 125,416.64 × 30,290.84
  4. Step 4: Simplify right side
    83,611.34x = 3,798,975,375.58
  5. Step 5: Solve for x
    x = 3,798,975,375.58/83,611.34
  6. Step 6: Final answer
    x = 45,436.13

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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.