Home / 81,037.75-121,557.17-25,633.75

Finding the Fourth Proportional to 81,037.75, 121,557.17 and 25,633.75

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Solution

The fourth proportional to 81,037.75, 121,557.17 and 25,633.75 is: 38,450.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,037.75 : 121,557.17 = 25,633.75 : x
  2. Step 2: Convert to fraction form
    81,037.75/121,557.17 = 25,633.75/x
  3. Step 3: Cross multiply
    81,037.75x = 121,557.17 × 25,633.75
  4. Step 4: Simplify right side
    81,037.75x = 3,115,966,106.49
  5. Step 5: Solve for x
    x = 3,115,966,106.49/81,037.75
  6. Step 6: Final answer
    x = 38,450.80

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1.5x scale

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.