Home / 75,074.37-103,640.14-43,237.12

Finding the Fourth Proportional to 75,074.37, 103,640.14 and 43,237.12

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Solution

The fourth proportional to 75,074.37, 103,640.14 and 43,237.12 is: 59,688.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,074.37 : 103,640.14 = 43,237.12 : x
  2. Step 2: Convert to fraction form
    75,074.37/103,640.14 = 43,237.12/x
  3. Step 3: Cross multiply
    75,074.37x = 103,640.14 × 43,237.12
  4. Step 4: Simplify right side
    75,074.37x = 4,481,101,170.00
  5. Step 5: Solve for x
    x = 4,481,101,170.00/75,074.37
  6. Step 6: Final answer
    x = 59,688.83

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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.