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Finding the Fourth Proportional to 41,679, 62,518.50 and 12,495

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Solution

The fourth proportional to 41,679, 62,518.50 and 12,495 is: 18,742.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,679 : 62,518.50 = 12,495 : x
  2. Step 2: Convert to fraction form
    41,679/62,518.50 = 12,495/x
  3. Step 3: Cross multiply
    41,679x = 62,518.50 × 12,495
  4. Step 4: Simplify right side
    41,679x = 781,168,657.50
  5. Step 5: Solve for x
    x = 781,168,657.50/41,679
  6. Step 6: Final answer
    x = 18,742.50

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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.