Home / 70,142.08-96,793.44-38,310.72

Finding the Fourth Proportional to 70,142.08, 96,793.44 and 38,310.72

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Solution

The fourth proportional to 70,142.08, 96,793.44 and 38,310.72 is: 52,867.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,142.08 : 96,793.44 = 38,310.72 : x
  2. Step 2: Convert to fraction form
    70,142.08/96,793.44 = 38,310.72/x
  3. Step 3: Cross multiply
    70,142.08x = 96,793.44 × 38,310.72
  4. Step 4: Simplify right side
    70,142.08x = 3,708,226,377.68
  5. Step 5: Solve for x
    x = 3,708,226,377.68/70,142.08
  6. Step 6: Final answer
    x = 52,867.36

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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.