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Finding the Fourth Proportional to 65,589.40, 90,497.82 and 37,310.68

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Solution

The fourth proportional to 65,589.40, 90,497.82 and 37,310.68 is: 51,479.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,589.40 : 90,497.82 = 37,310.68 : x
  2. Step 2: Convert to fraction form
    65,589.40/90,497.82 = 37,310.68/x
  3. Step 3: Cross multiply
    65,589.40x = 90,497.82 × 37,310.68
  4. Step 4: Simplify right side
    65,589.40x = 3,376,535,202.72
  5. Step 5: Solve for x
    x = 3,376,535,202.72/65,589.40
  6. Step 6: Final answer
    x = 51,479.89

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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.