Home / 70,209.72-96,896.10-38,383.44

Finding the Fourth Proportional to 70,209.72, 96,896.10 and 38,383.44

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Solution

The fourth proportional to 70,209.72, 96,896.10 and 38,383.44 is: 52,972.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,209.72 : 96,896.10 = 38,383.44 : x
  2. Step 2: Convert to fraction form
    70,209.72/96,896.10 = 38,383.44/x
  3. Step 3: Cross multiply
    70,209.72x = 96,896.10 × 38,383.44
  4. Step 4: Simplify right side
    70,209.72x = 3,719,205,640.58
  5. Step 5: Solve for x
    x = 3,719,205,640.58/70,209.72
  6. Step 6: Final answer
    x = 52,972.80

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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.