Home / 74,550.87-102,882.56-42,729.75

Finding the Fourth Proportional to 74,550.87, 102,882.56 and 42,729.75

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Solution

The fourth proportional to 74,550.87, 102,882.56 and 42,729.75 is: 58,968.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,550.87 : 102,882.56 = 42,729.75 : x
  2. Step 2: Convert to fraction form
    74,550.87/102,882.56 = 42,729.75/x
  3. Step 3: Cross multiply
    74,550.87x = 102,882.56 × 42,729.75
  4. Step 4: Simplify right side
    74,550.87x = 4,396,145,854.51
  5. Step 5: Solve for x
    x = 4,396,145,854.51/74,550.87
  6. Step 6: Final answer
    x = 58,968.40

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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.