Home / 70,230.72-96,918.48-38,399.76

Finding the Fourth Proportional to 70,230.72, 96,918.48 and 38,399.76

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Solution

The fourth proportional to 70,230.72, 96,918.48 and 38,399.76 is: 52,991.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,230.72 : 96,918.48 = 38,399.76 : x
  2. Step 2: Convert to fraction form
    70,230.72/96,918.48 = 38,399.76/x
  3. Step 3: Cross multiply
    70,230.72x = 96,918.48 × 38,399.76
  4. Step 4: Simplify right side
    70,230.72x = 3,721,646,371.56
  5. Step 5: Solve for x
    x = 3,721,646,371.56/70,230.72
  6. Step 6: Final answer
    x = 52,991.72

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Double scale
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Similar ratio
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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.