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Finding the Fourth Proportional to 61,747.16, 85,206 and 34,892

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Solution

The fourth proportional to 61,747.16, 85,206 and 34,892 is: 48,148.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,747.16 : 85,206 = 34,892 : x
  2. Step 2: Convert to fraction form
    61,747.16/85,206 = 34,892/x
  3. Step 3: Cross multiply
    61,747.16x = 85,206 × 34,892
  4. Step 4: Simplify right side
    61,747.16x = 2,973,007,752
  5. Step 5: Solve for x
    x = 2,973,007,752/61,747.16
  6. Step 6: Final answer
    x = 48,148.09

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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.