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Finding the Fourth Proportional to 65,964.19, 98,866.71 and 30,376.79

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Solution

The fourth proportional to 65,964.19, 98,866.71 and 30,376.79 is: 45,528.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,964.19 : 98,866.71 = 30,376.79 : x
  2. Step 2: Convert to fraction form
    65,964.19/98,866.71 = 30,376.79/x
  3. Step 3: Cross multiply
    65,964.19x = 98,866.71 × 30,376.79
  4. Step 4: Simplify right side
    65,964.19x = 3,003,253,200.20
  5. Step 5: Solve for x
    x = 3,003,253,200.20/65,964.19
  6. Step 6: Final answer
    x = 45,528.54

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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.