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Finding the Fourth Proportional to 58,120, 87,180 and 14,344

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Solution

The fourth proportional to 58,120, 87,180 and 14,344 is: 21,516

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,120 : 87,180 = 14,344 : x
  2. Step 2: Convert to fraction form
    58,120/87,180 = 14,344/x
  3. Step 3: Cross multiply
    58,120x = 87,180 × 14,344
  4. Step 4: Simplify right side
    58,120x = 1,250,509,920
  5. Step 5: Solve for x
    x = 1,250,509,920/58,120
  6. Step 6: Final answer
    x = 21,516

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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.