Home / 74,107.40-102,317.10-57,081.56

Finding the Fourth Proportional to 74,107.40, 102,317.10 and 57,081.56

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Solution

The fourth proportional to 74,107.40, 102,317.10 and 57,081.56 is: 78,810.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,107.40 : 102,317.10 = 57,081.56 : x
  2. Step 2: Convert to fraction form
    74,107.40/102,317.10 = 57,081.56/x
  3. Step 3: Cross multiply
    74,107.40x = 102,317.10 × 57,081.56
  4. Step 4: Simplify right side
    74,107.40x = 5,840,419,682.68
  5. Step 5: Solve for x
    x = 5,840,419,682.68/74,107.40
  6. Step 6: Final answer
    x = 78,810.21

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1.5x scale

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.