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Finding the Fourth Proportional to 63,978.65, 95,964.51 and 19,605.53

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Solution

The fourth proportional to 63,978.65, 95,964.51 and 19,605.53 is: 29,407.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,978.65 : 95,964.51 = 19,605.53 : x
  2. Step 2: Convert to fraction form
    63,978.65/95,964.51 = 19,605.53/x
  3. Step 3: Cross multiply
    63,978.65x = 95,964.51 × 19,605.53
  4. Step 4: Simplify right side
    63,978.65x = 1,881,434,599.92
  5. Step 5: Solve for x
    x = 1,881,434,599.92/63,978.65
  6. Step 6: Final answer
    x = 29,407.23

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.