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Finding the Fourth Proportional to 63,728.80, 95,618.88 and 28,684.96

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Solution

The fourth proportional to 63,728.80, 95,618.88 and 28,684.96 is: 43,039.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,728.80 : 95,618.88 = 28,684.96 : x
  2. Step 2: Convert to fraction form
    63,728.80/95,618.88 = 28,684.96/x
  3. Step 3: Cross multiply
    63,728.80x = 95,618.88 × 28,684.96
  4. Step 4: Simplify right side
    63,728.80x = 2,742,823,748.04
  5. Step 5: Solve for x
    x = 2,742,823,748.04/63,728.80
  6. Step 6: Final answer
    x = 43,039.00

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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.