Home / 70,608.08-97,439.20-38,778.56

Finding the Fourth Proportional to 70,608.08, 97,439.20 and 38,778.56

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Solution

The fourth proportional to 70,608.08, 97,439.20 and 38,778.56 is: 53,514.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,608.08 : 97,439.20 = 38,778.56 : x
  2. Step 2: Convert to fraction form
    70,608.08/97,439.20 = 38,778.56/x
  3. Step 3: Cross multiply
    70,608.08x = 97,439.20 × 38,778.56
  4. Step 4: Simplify right side
    70,608.08x = 3,778,551,863.55
  5. Step 5: Solve for x
    x = 3,778,551,863.55/70,608.08
  6. Step 6: Final answer
    x = 53,514.44

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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.