Home / 69,818.40-96,327.68-39,601.44

Finding the Fourth Proportional to 69,818.40, 96,327.68 and 39,601.44

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Solution

The fourth proportional to 69,818.40, 96,327.68 and 39,601.44 is: 54,637.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,818.40 : 96,327.68 = 39,601.44 : x
  2. Step 2: Convert to fraction form
    69,818.40/96,327.68 = 39,601.44/x
  3. Step 3: Cross multiply
    69,818.40x = 96,327.68 × 39,601.44
  4. Step 4: Simplify right side
    69,818.40x = 3,814,714,839.86
  5. Step 5: Solve for x
    x = 3,814,714,839.86/69,818.40
  6. Step 6: Final answer
    x = 54,637.67

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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.