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Finding the Fourth Proportional to 65,880.43, 98,809.44 and 18,484.63

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Solution

The fourth proportional to 65,880.43, 98,809.44 and 18,484.63 is: 27,723.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,880.43 : 98,809.44 = 18,484.63 : x
  2. Step 2: Convert to fraction form
    65,880.43/98,809.44 = 18,484.63/x
  3. Step 3: Cross multiply
    65,880.43x = 98,809.44 × 18,484.63
  4. Step 4: Simplify right side
    65,880.43x = 1,826,455,938.91
  5. Step 5: Solve for x
    x = 1,826,455,938.91/65,880.43
  6. Step 6: Final answer
    x = 27,723.80

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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.