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Finding the Fourth Proportional to 76,006, 104,888.28 and 42,472

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Solution

The fourth proportional to 76,006, 104,888.28 and 42,472 is: 58,611.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,006 : 104,888.28 = 42,472 : x
  2. Step 2: Convert to fraction form
    76,006/104,888.28 = 42,472/x
  3. Step 3: Cross multiply
    76,006x = 104,888.28 × 42,472
  4. Step 4: Simplify right side
    76,006x = 4,454,815,028.16
  5. Step 5: Solve for x
    x = 4,454,815,028.16/76,006
  6. Step 6: Final answer
    x = 58,611.36

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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.