Home / 70,103.28-96,741.12-38,272.38

Finding the Fourth Proportional to 70,103.28, 96,741.12 and 38,272.38

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Solution

The fourth proportional to 70,103.28, 96,741.12 and 38,272.38 is: 52,815.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,103.28 : 96,741.12 = 38,272.38 : x
  2. Step 2: Convert to fraction form
    70,103.28/96,741.12 = 38,272.38/x
  3. Step 3: Cross multiply
    70,103.28x = 96,741.12 × 38,272.38
  4. Step 4: Simplify right side
    70,103.28x = 3,702,512,906.27
  5. Step 5: Solve for x
    x = 3,702,512,906.27/70,103.28
  6. Step 6: Final answer
    x = 52,815.12

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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.