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Finding the Fourth Proportional to 40,350.09, 60,534.87 and 12,648.09

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Solution

The fourth proportional to 40,350.09, 60,534.87 and 12,648.09 is: 18,975.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,350.09 : 60,534.87 = 12,648.09 : x
  2. Step 2: Convert to fraction form
    40,350.09/60,534.87 = 12,648.09/x
  3. Step 3: Cross multiply
    40,350.09x = 60,534.87 × 12,648.09
  4. Step 4: Simplify right side
    40,350.09x = 765,650,663.47
  5. Step 5: Solve for x
    x = 765,650,663.47/40,350.09
  6. Step 6: Final answer
    x = 18,975.19

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1.5x scale

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.