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Finding the Fourth Proportional to 76,008.80, 104,824 and 63,304.16

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Solution

The fourth proportional to 76,008.80, 104,824 and 63,304.16 is: 87,302.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,008.80 : 104,824 = 63,304.16 : x
  2. Step 2: Convert to fraction form
    76,008.80/104,824 = 63,304.16/x
  3. Step 3: Cross multiply
    76,008.80x = 104,824 × 63,304.16
  4. Step 4: Simplify right side
    76,008.80x = 6,635,795,267.84
  5. Step 5: Solve for x
    x = 6,635,795,267.84/76,008.80
  6. Step 6: Final answer
    x = 87,302.99

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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.