Home / 70,119-96,766.44-38,290.32

Finding the Fourth Proportional to 70,119, 96,766.44 and 38,290.32

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Solution

The fourth proportional to 70,119, 96,766.44 and 38,290.32 is: 52,841.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,119 : 96,766.44 = 38,290.32 : x
  2. Step 2: Convert to fraction form
    70,119/96,766.44 = 38,290.32/x
  3. Step 3: Cross multiply
    70,119x = 96,766.44 × 38,290.32
  4. Step 4: Simplify right side
    70,119x = 3,705,217,952.86
  5. Step 5: Solve for x
    x = 3,705,217,952.86/70,119
  6. Step 6: Final answer
    x = 52,841.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.