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Finding the Fourth Proportional to 66,924, 100,403.28 and 19,537.92

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Solution

The fourth proportional to 66,924, 100,403.28 and 19,537.92 is: 29,311.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,924 : 100,403.28 = 19,537.92 : x
  2. Step 2: Convert to fraction form
    66,924/100,403.28 = 19,537.92/x
  3. Step 3: Cross multiply
    66,924x = 100,403.28 × 19,537.92
  4. Step 4: Simplify right side
    66,924x = 1,961,671,252.38
  5. Step 5: Solve for x
    x = 1,961,671,252.38/66,924
  6. Step 6: Final answer
    x = 29,311.92

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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.