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Finding the Fourth Proportional to 58,242, 87,363 and 16,689

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Solution

The fourth proportional to 58,242, 87,363 and 16,689 is: 25,033.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,242 : 87,363 = 16,689 : x
  2. Step 2: Convert to fraction form
    58,242/87,363 = 16,689/x
  3. Step 3: Cross multiply
    58,242x = 87,363 × 16,689
  4. Step 4: Simplify right side
    58,242x = 1,458,001,107
  5. Step 5: Solve for x
    x = 1,458,001,107/58,242
  6. Step 6: Final answer
    x = 25,033.50

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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.