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Finding the Fourth Proportional to 63,687.70, 95,531.55 and 57,782.80

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Solution

The fourth proportional to 63,687.70, 95,531.55 and 57,782.80 is: 86,674.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,687.70 : 95,531.55 = 57,782.80 : x
  2. Step 2: Convert to fraction form
    63,687.70/95,531.55 = 57,782.80/x
  3. Step 3: Cross multiply
    63,687.70x = 95,531.55 × 57,782.80
  4. Step 4: Simplify right side
    63,687.70x = 5,520,080,447.34
  5. Step 5: Solve for x
    x = 5,520,080,447.34/63,687.70
  6. Step 6: Final answer
    x = 86,674.20

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1.5x scale

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.