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Finding the Fourth Proportional to 61,442.00, 92,162.90 and 19,325.78

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Solution

The fourth proportional to 61,442.00, 92,162.90 and 19,325.78 is: 28,988.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,442.00 : 92,162.90 = 19,325.78 : x
  2. Step 2: Convert to fraction form
    61,442.00/92,162.90 = 19,325.78/x
  3. Step 3: Cross multiply
    61,442.00x = 92,162.90 × 19,325.78
  4. Step 4: Simplify right side
    61,442.00x = 1,781,119,372.12
  5. Step 5: Solve for x
    x = 1,781,119,372.12/61,442.00
  6. Step 6: Final answer
    x = 28,988.63

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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.