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Finding the Fourth Proportional to 61,684, 85,123.96 and 33,389.92

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Solution

The fourth proportional to 61,684, 85,123.96 and 33,389.92 is: 46,078.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,684 : 85,123.96 = 33,389.92 : x
  2. Step 2: Convert to fraction form
    61,684/85,123.96 = 33,389.92/x
  3. Step 3: Cross multiply
    61,684x = 85,123.96 × 33,389.92
  4. Step 4: Simplify right side
    61,684x = 2,842,282,214.48
  5. Step 5: Solve for x
    x = 2,842,282,214.48/61,684
  6. Step 6: Final answer
    x = 46,078.11

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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.