Home / 70,456.08-97,231.68-38,628.48

Finding the Fourth Proportional to 70,456.08, 97,231.68 and 38,628.48

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Solution

The fourth proportional to 70,456.08, 97,231.68 and 38,628.48 is: 53,308.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,456.08 : 97,231.68 = 38,628.48 : x
  2. Step 2: Convert to fraction form
    70,456.08/97,231.68 = 38,628.48/x
  3. Step 3: Cross multiply
    70,456.08x = 97,231.68 × 38,628.48
  4. Step 4: Simplify right side
    70,456.08x = 3,755,912,006.25
  5. Step 5: Solve for x
    x = 3,755,912,006.25/70,456.08
  6. Step 6: Final answer
    x = 53,308.56

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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.