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Finding the Fourth Proportional to 95,457.80, 131,723.70 and 57,729.80

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Solution

The fourth proportional to 95,457.80, 131,723.70 and 57,729.80 is: 79,662.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,457.80 : 131,723.70 = 57,729.80 : x
  2. Step 2: Convert to fraction form
    95,457.80/131,723.70 = 57,729.80/x
  3. Step 3: Cross multiply
    95,457.80x = 131,723.70 × 57,729.80
  4. Step 4: Simplify right side
    95,457.80x = 7,604,382,856.26
  5. Step 5: Solve for x
    x = 7,604,382,856.26/95,457.80
  6. Step 6: Final answer
    x = 79,662.25

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.