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Finding the Fourth Proportional to 65,588.40, 90,496.44 and 37,309.68

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Solution

The fourth proportional to 65,588.40, 90,496.44 and 37,309.68 is: 51,478.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,588.40 : 90,496.44 = 37,309.68 : x
  2. Step 2: Convert to fraction form
    65,588.40/90,496.44 = 37,309.68/x
  3. Step 3: Cross multiply
    65,588.40x = 90,496.44 × 37,309.68
  4. Step 4: Simplify right side
    65,588.40x = 3,376,393,217.54
  5. Step 5: Solve for x
    x = 3,376,393,217.54/65,588.40
  6. Step 6: Final answer
    x = 51,478.51

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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.