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Finding the Fourth Proportional to 40,340.60, 60,512.77 and 12,264.68

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Solution

The fourth proportional to 40,340.60, 60,512.77 and 12,264.68 is: 18,397.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,340.60 : 60,512.77 = 12,264.68 : x
  2. Step 2: Convert to fraction form
    40,340.60/60,512.77 = 12,264.68/x
  3. Step 3: Cross multiply
    40,340.60x = 60,512.77 × 12,264.68
  4. Step 4: Simplify right side
    40,340.60x = 742,169,926.58
  5. Step 5: Solve for x
    x = 742,169,926.58/40,340.60
  6. Step 6: Final answer
    x = 18,397.59

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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.