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Finding the Fourth Proportional to 61,341.75, 92,002.26 and 19,788.75

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Solution

The fourth proportional to 61,341.75, 92,002.26 and 19,788.75 is: 29,679.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,341.75 : 92,002.26 = 19,788.75 : x
  2. Step 2: Convert to fraction form
    61,341.75/92,002.26 = 19,788.75/x
  3. Step 3: Cross multiply
    61,341.75x = 92,002.26 × 19,788.75
  4. Step 4: Simplify right side
    61,341.75x = 1,820,609,722.58
  5. Step 5: Solve for x
    x = 1,820,609,722.58/61,341.75
  6. Step 6: Final answer
    x = 29,679.78

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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.