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Finding the Fourth Proportional to 74,241.36, 111,420.36 and 40,984.38

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Solution

The fourth proportional to 74,241.36, 111,420.36 and 40,984.38 is: 61,508.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,241.36 : 111,420.36 = 40,984.38 : x
  2. Step 2: Convert to fraction form
    74,241.36/111,420.36 = 40,984.38/x
  3. Step 3: Cross multiply
    74,241.36x = 111,420.36 × 40,984.38
  4. Step 4: Simplify right side
    74,241.36x = 4,566,494,373.98
  5. Step 5: Solve for x
    x = 4,566,494,373.98/74,241.36
  6. Step 6: Final answer
    x = 61,508.77

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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.