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Finding the Fourth Proportional to 65,304.64, 90,119.37 and 36,624.16

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Solution

The fourth proportional to 65,304.64, 90,119.37 and 36,624.16 is: 50,540.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,304.64 : 90,119.37 = 36,624.16 : x
  2. Step 2: Convert to fraction form
    65,304.64/90,119.37 = 36,624.16/x
  3. Step 3: Cross multiply
    65,304.64x = 90,119.37 × 36,624.16
  4. Step 4: Simplify right side
    65,304.64x = 3,300,546,225.98
  5. Step 5: Solve for x
    x = 3,300,546,225.98/65,304.64
  6. Step 6: Final answer
    x = 50,540.76

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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.