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Finding the Fourth Proportional to 94,992, 142,488 and 39,588

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Solution

The fourth proportional to 94,992, 142,488 and 39,588 is: 59,382

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,992 : 142,488 = 39,588 : x
  2. Step 2: Convert to fraction form
    94,992/142,488 = 39,588/x
  3. Step 3: Cross multiply
    94,992x = 142,488 × 39,588
  4. Step 4: Simplify right side
    94,992x = 5,640,814,944
  5. Step 5: Solve for x
    x = 5,640,814,944/94,992
  6. Step 6: Final answer
    x = 59,382

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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.