Home / 74,740.59-103,140.68-40,750.56

Finding the Fourth Proportional to 74,740.59, 103,140.68 and 40,750.56

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Solution

The fourth proportional to 74,740.59, 103,140.68 and 40,750.56 is: 56,235.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,740.59 : 103,140.68 = 40,750.56 : x
  2. Step 2: Convert to fraction form
    74,740.59/103,140.68 = 40,750.56/x
  3. Step 3: Cross multiply
    74,740.59x = 103,140.68 × 40,750.56
  4. Step 4: Simplify right side
    74,740.59x = 4,203,040,265.03
  5. Step 5: Solve for x
    x = 4,203,040,265.03/74,740.59
  6. Step 6: Final answer
    x = 56,235.04

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.