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Finding the Fourth Proportional to 65,586.80, 98,266.80 and 30,454.40

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Solution

The fourth proportional to 65,586.80, 98,266.80 and 30,454.40 is: 45,628.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,586.80 : 98,266.80 = 30,454.40 : x
  2. Step 2: Convert to fraction form
    65,586.80/98,266.80 = 30,454.40/x
  3. Step 3: Cross multiply
    65,586.80x = 98,266.80 × 30,454.40
  4. Step 4: Simplify right side
    65,586.80x = 2,992,656,433.92
  5. Step 5: Solve for x
    x = 2,992,656,433.92/65,586.80
  6. Step 6: Final answer
    x = 45,628.94

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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.