Home / 259,025.80-388,538.70-72,037.30

Finding the Fourth Proportional to 259,025.80, 388,538.70 and 72,037.30

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Solution

The fourth proportional to 259,025.80, 388,538.70 and 72,037.30 is: 108,055.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,025.80 : 388,538.70 = 72,037.30 : x
  2. Step 2: Convert to fraction form
    259,025.80/388,538.70 = 72,037.30/x
  3. Step 3: Cross multiply
    259,025.80x = 388,538.70 × 72,037.30
  4. Step 4: Simplify right side
    259,025.80x = 27,989,278,893.51
  5. Step 5: Solve for x
    x = 27,989,278,893.51/259,025.80
  6. Step 6: Final answer
    x = 108,055.95

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.