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Finding the Fourth Proportional to 65,384.88, 90,241.20 and 37,084.56

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Solution

The fourth proportional to 65,384.88, 90,241.20 and 37,084.56 is: 51,182.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,384.88 : 90,241.20 = 37,084.56 : x
  2. Step 2: Convert to fraction form
    65,384.88/90,241.20 = 37,084.56/x
  3. Step 3: Cross multiply
    65,384.88x = 90,241.20 × 37,084.56
  4. Step 4: Simplify right side
    65,384.88x = 3,346,555,195.87
  5. Step 5: Solve for x
    x = 3,346,555,195.87/65,384.88
  6. Step 6: Final answer
    x = 51,182.40

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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.