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Finding the Fourth Proportional to 65,880.41, 98,590.77 and 53,895.65

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Solution

The fourth proportional to 65,880.41, 98,590.77 and 53,895.65 is: 80,655.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,880.41 : 98,590.77 = 53,895.65 : x
  2. Step 2: Convert to fraction form
    65,880.41/98,590.77 = 53,895.65/x
  3. Step 3: Cross multiply
    65,880.41x = 98,590.77 × 53,895.65
  4. Step 4: Simplify right side
    65,880.41x = 5,313,613,140.20
  5. Step 5: Solve for x
    x = 5,313,613,140.20/65,880.41
  6. Step 6: Final answer
    x = 80,655.44

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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.