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Finding the Fourth Proportional to 65,596.80, 98,281.80 and 30,464.40

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Solution

The fourth proportional to 65,596.80, 98,281.80 and 30,464.40 is: 45,643.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,596.80 : 98,281.80 = 30,464.40 : x
  2. Step 2: Convert to fraction form
    65,596.80/98,281.80 = 30,464.40/x
  3. Step 3: Cross multiply
    65,596.80x = 98,281.80 × 30,464.40
  4. Step 4: Simplify right side
    65,596.80x = 2,994,096,067.92
  5. Step 5: Solve for x
    x = 2,994,096,067.92/65,596.80
  6. Step 6: Final answer
    x = 45,643.93

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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.