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Finding the Fourth Proportional to 40,489.78, 60,727.78 and 10,901.02

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Solution

The fourth proportional to 40,489.78, 60,727.78 and 10,901.02 is: 16,349.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,489.78 : 60,727.78 = 10,901.02 : x
  2. Step 2: Convert to fraction form
    40,489.78/60,727.78 = 10,901.02/x
  3. Step 3: Cross multiply
    40,489.78x = 60,727.78 × 10,901.02
  4. Step 4: Simplify right side
    40,489.78x = 661,994,744.34
  5. Step 5: Solve for x
    x = 661,994,744.34/40,489.78
  6. Step 6: Final answer
    x = 16,349.68

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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.