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Finding the Fourth Proportional to 63,904.61, 88,194.93 and 38,419.28

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Solution

The fourth proportional to 63,904.61, 88,194.93 and 38,419.28 is: 53,022.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,904.61 : 88,194.93 = 38,419.28 : x
  2. Step 2: Convert to fraction form
    63,904.61/88,194.93 = 38,419.28/x
  3. Step 3: Cross multiply
    63,904.61x = 88,194.93 × 38,419.28
  4. Step 4: Simplify right side
    63,904.61x = 3,388,385,455.93
  5. Step 5: Solve for x
    x = 3,388,385,455.93/63,904.61
  6. Step 6: Final answer
    x = 53,022.55

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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.