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Finding the Fourth Proportional to 40,165.68, 60,229.80 and 21,440.64

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Solution

The fourth proportional to 40,165.68, 60,229.80 and 21,440.64 is: 32,150.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,165.68 : 60,229.80 = 21,440.64 : x
  2. Step 2: Convert to fraction form
    40,165.68/60,229.80 = 21,440.64/x
  3. Step 3: Cross multiply
    40,165.68x = 60,229.80 × 21,440.64
  4. Step 4: Simplify right side
    40,165.68x = 1,291,365,459.07
  5. Step 5: Solve for x
    x = 1,291,365,459.07/40,165.68
  6. Step 6: Final answer
    x = 32,150.97

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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.