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Finding the Fourth Proportional to 40,451.50, 60,677.25 and 12,749.50

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Solution

The fourth proportional to 40,451.50, 60,677.25 and 12,749.50 is: 19,124.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,451.50 : 60,677.25 = 12,749.50 : x
  2. Step 2: Convert to fraction form
    40,451.50/60,677.25 = 12,749.50/x
  3. Step 3: Cross multiply
    40,451.50x = 60,677.25 × 12,749.50
  4. Step 4: Simplify right side
    40,451.50x = 773,604,598.88
  5. Step 5: Solve for x
    x = 773,604,598.88/40,451.50
  6. Step 6: Final answer
    x = 19,124.25

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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.