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Finding the Fourth Proportional to 40,423.80, 60,643.80 and 33,895.20

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Solution

The fourth proportional to 40,423.80, 60,643.80 and 33,895.20 is: 50,849.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,423.80 : 60,643.80 = 33,895.20 : x
  2. Step 2: Convert to fraction form
    40,423.80/60,643.80 = 33,895.20/x
  3. Step 3: Cross multiply
    40,423.80x = 60,643.80 × 33,895.20
  4. Step 4: Simplify right side
    40,423.80x = 2,055,533,729.76
  5. Step 5: Solve for x
    x = 2,055,533,729.76/40,423.80
  6. Step 6: Final answer
    x = 50,849.59

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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.