Home / 65,769.36-90,778.17-37,491.48

Finding the Fourth Proportional to 65,769.36, 90,778.17 and 37,491.48

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Solution

The fourth proportional to 65,769.36, 90,778.17 and 37,491.48 is: 51,747.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,769.36 : 90,778.17 = 37,491.48 : x
  2. Step 2: Convert to fraction form
    65,769.36/90,778.17 = 37,491.48/x
  3. Step 3: Cross multiply
    65,769.36x = 90,778.17 × 37,491.48
  4. Step 4: Simplify right side
    65,769.36x = 3,403,407,944.99
  5. Step 5: Solve for x
    x = 3,403,407,944.99/65,769.36
  6. Step 6: Final answer
    x = 51,747.62

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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.