Home / 74,788.10-103,188.89-45,709.04

Finding the Fourth Proportional to 74,788.10, 103,188.89 and 45,709.04

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Solution

The fourth proportional to 74,788.10, 103,188.89 and 45,709.04 is: 63,067.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,788.10 : 103,188.89 = 45,709.04 : x
  2. Step 2: Convert to fraction form
    74,788.10/103,188.89 = 45,709.04/x
  3. Step 3: Cross multiply
    74,788.10x = 103,188.89 × 45,709.04
  4. Step 4: Simplify right side
    74,788.10x = 4,716,665,100.57
  5. Step 5: Solve for x
    x = 4,716,665,100.57/74,788.10
  6. Step 6: Final answer
    x = 63,067.05

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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.