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Finding the Fourth Proportional to 65,343.20, 97,755.60 and 56,674.40

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Solution

The fourth proportional to 65,343.20, 97,755.60 and 56,674.40 is: 84,786.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,343.20 : 97,755.60 = 56,674.40 : x
  2. Step 2: Convert to fraction form
    65,343.20/97,755.60 = 56,674.40/x
  3. Step 3: Cross multiply
    65,343.20x = 97,755.60 × 56,674.40
  4. Step 4: Simplify right side
    65,343.20x = 5,540,239,976.64
  5. Step 5: Solve for x
    x = 5,540,239,976.64/65,343.20
  6. Step 6: Final answer
    x = 84,786.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.