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Finding the Fourth Proportional to 70,120.32, 96,764.32 and 38,288.48

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Solution

The fourth proportional to 70,120.32, 96,764.32 and 38,288.48 is: 52,837.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,120.32 : 96,764.32 = 38,288.48 : x
  2. Step 2: Convert to fraction form
    70,120.32/96,764.32 = 38,288.48/x
  3. Step 3: Cross multiply
    70,120.32x = 96,764.32 × 38,288.48
  4. Step 4: Simplify right side
    70,120.32x = 3,704,958,731.03
  5. Step 5: Solve for x
    x = 3,704,958,731.03/70,120.32
  6. Step 6: Final answer
    x = 52,837.16

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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.